Fix pylint 4.0.4 distro

[rads-1996]

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• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
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[Copilot]

Pull request overview

This pull request fixes pylint 4.0.4 compatibility issues across the azure-monitor-opentelemetry package. The changes address new linting rules by improving code quality through better import ordering, adding necessary encoding specifications, removing unused imports, and adding appropriate pylint disable comments where the warnings are intentional or false positives.

Changes:

• Removed unused imports and duplicate test methods
• Standardized import ordering (stdlib → third-party → azure packages)
• Added encoding='utf-8' parameter to all open() calls
• Added pylint disable comments for intentional patterns (broad exceptions in samples, unused mock parameters in tests, etc.)
• Improved code quality (e.g., using context manager for urlopen, renaming unclear parameter names, using sys.exit() instead of exit())

Reviewed changes

Copilot reviewed 41 out of 41 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test_utils.py	Removed unused import, added pylint disables for line length and unused arguments
test_configurations.py	Reordered imports, removed duplicate test method, added pylint disables
test_configure.py	Removed unused imports, added pylint disable for too-many-public-methods
test_psycopg2.py	Reordered imports (pytest after stdlib)
test_status_logger.py	Added encoding='utf-8' to open() calls
test_diagnostic_logging.py	Removed unused import, added encoding, added pylint disables
test_distro.py	Added pylint disable for unused-argument
test_configurator.py	Removed unused import, added pylint disable
Tracing samples (11 files)	Reordered imports, added pylint disables for intentional broad exceptions and other patterns
Django samples (5 files)	Import reordering, parameter renames (_request prefix), pylint disables
Metrics samples (5 files)	Import reordering, parameter renames (_options prefix), pylint disables
Logging samples (4 files)	Import reordering, parameter renames, pylint disables
Authentication samples (2 files)	Import reordering
instrumentation.py	Added pylint disable for logging warning without debug check
diagnostic_logging.py	Added pylint disable for logging error without debug check