chore: remove xfail markers from most flaky tests

[germa89]

Description

As the title.

Issue linked

Close #2435

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)

[sourcery-ai]

Reviewer's Guide

This pull request removes pytest.mark.xfail decorators from several tests across various test files. This was achieved by deleting the specific decorator lines above the test function definitions, indicating that these tests are now expected to pass.

File-Level Changes

Change	Details	Files
Removed xfail markers from tests previously marked as flaky or failing.	Deleted @pytest.mark.xfail(...) decorators from test_remove_temp_dir_on_exit and test_remove_temp_dir_on_exit_with_launch_mapdl. Deleted @pytest.mark.xfail(...) decorator from test_readin_catiav5. Deleted @pytest.mark.xfail(...) decorator from test_map_timeout. Deleted @pytest.mark.xfail(...) decorator from test_extract.	tests/test_mapdl.py tests/test_importing_geometries.py tests/test_pool.py tests/test_xpl.py

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[ansys-reviewer-bot]

Thanks for opening a Pull Request. If you want to perform a review write a comment saying:

@ansys-reviewer-bot review

[sourcery-ai]

Hey @germa89 - I've reviewed your changes - here's some feedback:

• Link to the resolved issues (e.g., #2435, #2377) in the PR description to justify removing these xfail markers.
• If this PR only removes xfail markers due to fixes elsewhere, consider using 'chore:' as the commit type prefix instead of 'fix:'.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟡 Testing: 1 issue found
• 🟢 Documentation: all looks good

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[germa89]

First run goes well. Let's rerun by merging main.

[germa89]

@pyansys-ci-bot LGTM.

[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 88.28%. Comparing base (1b1b6b4) to head (cbb4e37).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3899      +/-   ##
==========================================
- Coverage   88.29%   88.28%   -0.02%     
==========================================
  Files         187      187              
  Lines       14830    14830              
==========================================
- Hits        13094    13092       -2     
- Misses       1736     1738       +2     

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