[Network Drive] Fix DLS file permission check not properly taking credentials (#3873)

## Follow up for #3868

For some reason code that handles file permissions did not pass
credentials to the `open_file` method. This caused DLS syncs to fail
with an error:

```
Traceback (most recent call last):
  File "/app/connectors/es/sink.py", line 514, in run
    await self.get_docs(sanitized_generator)
  File "/app/connectors/es/sink.py", line 568, in get_docs
    async for count, doc in aenumerate(generator):
  File "/app/connectors/utils.py", line 861, in aenumerate
    async for elem in asequence:
  File "/app/connectors/logger.py", line 244, in __anext__
    return await self.gen.__anext__()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/connectors/es/sink.py", line 550, in _decorate_with_metrics_span
    async for doc in generator:
  File "/app/connectors/es/sink.py", line 508, in <genexpr>
    sanitized_generator = (
                          ^
  File "/app/connectors/sync_job_runner.py", line 420, in prepare_docs
    async for doc, lazy_download, operation in self.generator():
  File "/app/connectors/sync_job_runner.py", line 456, in generator
    async for doc, lazy_download in self.data_provider.get_docs(
  File "/app/connectors/sources/network_drive.py", line 919, in get_docs
    await self._decorate_with_access_control(
  File "/app/connectors/sources/network_drive.py", line 727, in _decorate_with_access_control
    allow_permissions, deny_permissions = await self.get_entity_permission(
                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/connectors/sources/network_drive.py", line 850, in get_entity_permission
    list_permissions = await asyncio.to_thread(
                       ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/connectors/sources/network_drive.py", line 697, in list_file_permission
    with smbclient.open_file(
         ^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/smbclient/_os.py", line 382, in open_file
    raw_fd = file_class(
             ^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/smbclient/_io.py", line 353, in __init__
    tree, fd_path = get_smb_tree(path, **kwargs)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/smbclient/_pool.py", line 304, in get_smb_tree
    session = register_session(
              ^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/smbclient/_pool.py", line 422, in register_session
    session.connect()
  File "/app/.venv/lib/python3.11/site-packages/smbprotocol/session.py", line 288, in connect
    raise SMBAuthenticationError("Failed to authenticate with server: %s" % str(err.message))
smbprotocol.exceptions.SMBAuthenticationError: Failed to authenticate with server: SpnegoError (1): SpnegoError (16): Operation not supported or available, Context: No username or password was specified and the credential cache did not exist or contained no credentials, Context: Unable to negotiate common mechanism
```

This PR fixes it by providing credentials needed for the call.

Fun side-effect was that 2 places did not use connection cache, so when
files were downloaded a different connection was created - this caused
DLS bug, because original connection with credentials was in local
cache, and when file permissions were downloaded a new connection was
created without credentials causing the bug.

## Checklists

<!--You can remove unrelated items from checklists below and/or add new
items that may help during the review.-->

#### Pre-Review Checklist
- [x] this PR does NOT contain credentials of any kind, such as API keys
or username/passwords (double check `config.yml.example`)
- [x] this PR has a meaningful title
- [x] this PR links to all relevant github issues that it fixes or
partially addresses
- [ ] if there is no GH issue, please create it. Each PR should have a
link to an issue
- [x] this PR has a thorough description
- [ ] Covered the changes with automated tests
- [x] Tested the changes locally
- [ ] Added a label for each target release version (example: `v7.13.2`,
`v7.14.0`, `v8.0.0`)
- [ ] For bugfixes: backport safely to all minor branches still
receiving patch releases
- [ ] Considered corresponding documentation changes
- [ ] Contributed any configuration settings changes to the
configuration reference
- [ ] if you added or changed Rich Configurable Fields for a Native
Connector, you made a corresponding PR in
[Kibana](https://github.com/elastic/kibana/blob/main/packages/kbn-search-connectors/types/native_connectors.ts)

---------

Co-authored-by: Elastic Machine <[email protected]>

Author: artem-shelkovnikov

app/connectors_service/NOTICE.txt

@@ -1628,7 +1628,7 @@ SOFTWARE.
 
 
 anyio
-4.11.0
+4.12.0
 UNKNOWN
 The MIT License (MIT)
 

app/connectors_service/connectors/sources/network_drive/datasource.py

@@ -384,6 +384,7 @@ async def fetch_file_content(self, path):
                 username=self.username,
                 password=self.password,
                 port=self.port,
+                connection_cache=self._connection_cache,
             ) as file:
                 chunk = True
                 while chunk:
@@ -437,7 +438,10 @@ def list_file_permission(self, file_path, file_type, mode, access):
                 buffering=0,
                 file_type=file_type,
                 desired_access=access,
+                username=self.username,
+                password=self.password,
                 port=self.port,
+                connection_cache=self._connection_cache,
             ) as file:
                 descriptor = self.security_info.get_descriptor(
                     file_descriptor=file.fd, info=SECURITY_INFO_DACL