On the per_file rule default arguments and user given arguments are not merged correctly

[furtib]

Describe the bug
On the per_file rule, default arguments and user-given arguments are not merged. They both get passed along to CodeChecker. This could be confusing users looking at the codechecker.log. Also, in a future patch, I want to depend on this argument list, and it's easier to filter them out here.

Versions

• CodeChecker 6.26.0
• bazel 6.5.0
• f496416

To Reproduce
Run in codechecker_bazel root:
(This will change the code_checker_pass rule!!!)

sed -i '262i\        "--analyzers clangsa clang-tidy",' test/unit/legacy/BUILD
bazel build //test/unit/legacy:code_checker_pass
cat bazel-bin/test/unit/legacy/code_checker_pass/data/test-unit-legacy-src-pass.cc_codechecker.log

See output:

CodeChecker command: CodeChecker analyze --analyzers clangsa clang-tidy --clean --ctu --analyzers clang-tidy clangsa cppcheck --output=code_checker_pass/data --file=*/test/unit/legacy/src/pass.cc bazel-out/k8-fastbuild/bin/test/unit/legacy/code_checker_pass/data/compile_commands.json.abs
...

Expected behaviour
I expected to see only one --analyzers in the CodeChecker command. There is 2.