Update python-matrix-runner

[JonatanAntoni]

Fixes https://github.com/ARM-software/CMSIS-RTOS2_Validation/security/dependabot/1

[Copilot]

Pull request overview

Updates the Python build dependencies used by Project/build.py (per the referenced Dependabot security alert) and adjusts repository ignore rules for generated artifacts.

Changes:

• Bump python-matrix-runner dependency from ~=1.0 to ~=1.3.
• Remove lxml from Project/requirements.txt.
• Add Project/tmp to .gitignore.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
Project/requirements.txt	Updates Python dependency versions for the build.py workflow.
.gitignore	Ignores Project/tmp to prevent temporary build artifacts from being committed.

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[github-actions]

Test Results

    64 files     64 suites   0s ⏱️
   161 tests   157 ✅   0 💤   4 ❌
10 304 runs  9 472 ✅ 704 💤 128 ❌

For more details on these failures, see this check.

Results for commit e803708.

[jkrech]

This means we do not actually need lxml at all. Great.

[JonatanAntoni]

@VladimirUmek, there are failing test cases. May I ask you to check if these are known and expected?

[JonatanAntoni]

This means we do not actually need lxml at all. Great.

Not exactly, its a transitive dependency of python-matrix-runner. Thus I needed to release a new python-matrix-runner which has all dependencies updated.