WIP (do not merge): Support newer python and remove ugly dependencies

[aantn]

Removes dependencies on matplotlib and PIL which cause all sorts of problems (see #436) by using my own fork of prometheus-api-client that doesn't have the problematic dependencies. This solves all sorts of problems and lets us update python versions etc.

This doesn't work yet because it needs an upgraded prometrix version to fully fix (which also replaces the dependency).
You can see this by running poetry show --tree

[coderabbitai]

Walkthrough

The changes update Python version constraints, adjust dependencies by replacing and upgrading specific packages, and add a comment explaining the version pinning rationale in the project configuration file. No source code or public API declarations were modified.

Changes

File	Change Summary
pyproject.toml	Updated Python version constraint, replaced "prometheus-api-client" with "prometheus-api-client-optional-matplotlib", upgraded "pyinstaller", and added explanatory comment.

Sequence Diagram(s)

No sequence diagram is generated as the changes are limited to configuration and dependency management.

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

pyproject.toml (1)

55-55: Keep the caret pin but add a comment for clarity

^6.0 already means <7.0; consider mirroring the Python comment for future maintainers:

-pyinstaller = "^6.0"
+pyinstaller = "^6.0"          # 6.x is the first branch to (eventually) support Python ≥3.12

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 79680ee and 64e39c7.

⛔ Files ignored due to path filters (1)

• poetry.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• pyproject.toml (2 hunks)

🔇 Additional comments (2)

pyproject.toml (2)

26-26: PyInstaller Compatibility with Python 3.13 Confirmed

✅ The PyInstaller package on PyPI specifies
• requires_python = “<3.14,>=3.8”
• includes the classifier “Programming Language :: Python :: 3.13”

No changes required—Python 3.13 is officially supported.

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30-30: Import path verification passed for prometheus_api_client (0.6.0)
Installed prometheus-api-client-optional-matplotlib==0.6.0 and confirmed that

import prometheus_api_client as pac
print(pac.__version__)  # → 0.6.0

succeeds, ensuring all existing import prometheus_api_client statements remain valid.