Pickling data produces a misleading warning

[G-D-Petrov]

Describe the bug

Pickling data produces a warning that we are pickling metadata which is misleading for users.

Steps/Code to Reproduce

from arcticdb import Arctic

ac = Arctic("lmdb://test_metadata")
lib = ac.get_library("test_metadata", create_if_missing=True)

lib._nvs.write("b", float)

Expected Results

Should be something related to the fact that we are pickling data, instead of:
W arcticdb | Pickling metadata - may not be readable by other clients

OS, Python Version and ArcticDB Version

Python: 3.11.11 (main, Dec 4 2024, 08:55:08) [GCC 13.2.0]
OS: Linux-5.15.167.4-microsoft-standard-WSL2-x86_64-with-glibc2.39
ArcticDB: 5.3.3

Backend storage used

Any backend

Additional Context

No response