fix(tests): update pytest arguments for consistency and clarity in local and remote workflows

[germa89]

Description

As the title.

Issue linked

Close #4313

Checklist

• I have visited and read Develop PyMAPDL.
• I have tested my changes locally
• I have added necessary documentation or updated existing documentation.
• I have followed the PyMAPDL coding style guidelines.
• I have added appropriate unit tests that also ensure the minimal coverage criteria.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have marked this PR as draft if it is not ready to be reviewed yet.
• I have made sure that the title of my PR follows Commit naming conventions (e.g. feat: adding new MAPDL command)

[germa89]

@pyansys-ci-bot LGTM.

[Copilot]

Pull request overview

This PR consolidates pytest configuration by moving test arguments from workflow environment variables into the centralized pyproject.toml configuration file. This change improves maintainability by having a single source of truth for pytest settings and simplifies the CI/CD workflow definitions.

Key Changes

• Expanded pytest arguments in pyproject.toml from a single string to a detailed list with coverage, profiling, and logging options
• Simplified workflow environment variables by removing redundant pytest arguments that are now defined in pyproject.toml
• Cleaned up test execution commands in both local and remote workflows by removing duplicate argument specifications

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
pyproject.toml	Expanded pytest configuration from single-line string to comprehensive multi-line list with coverage, profiling, and logging options
.github/workflows/test-remote.yml	Simplified PYTEST_ARGUMENTS to only include workflow-specific --ignore_image_cache flag, removing arguments now in pyproject.toml
.github/workflows/test-local.yml	Cleared PYTEST_ARGUMENTS environment variable, relying entirely on pyproject.toml configuration

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[pyansys-ci-bot]

✅ Approving this PR because germa89 said so in here 😬

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.36%. Comparing base (8efc45e) to head (8a8a5fb).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4322      +/-   ##
==========================================
+ Coverage   91.27%   91.36%   +0.09%     
==========================================
  Files         193      193              
  Lines       15742    15742              
==========================================
+ Hits        14368    14383      +15     
+ Misses       1374     1359      -15     

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