Remove Python 3.8

[ludeeus]

Proposed change

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionalit)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:

Checklist

• The code change is tested and works locally.
• Local tests pass.
• There is no commented out code in this PR.
• The code has been formatted using Black (make lint)
• Tests have been added to verify that the new code works.

[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The changes update the project's minimum supported Python version from 3.8 to 3.9. This update is reflected across the GitHub Actions workflow, the README badge, the Poetry dependency specification, and the runtime specification file. No other dependencies, configurations, or code were altered.

Changes

File(s)	Change Summary
.github/workflows/actions.yml	Removed Python 3.8 from the test matrix; now tests on Python 3.9, 3.10, 3.11, and 3.12.
README.md	Updated the Python version badge to indicate support from Python 3.9 to 3.12.
pyproject.toml	Changed Poetry's required Python version from "^3.8" to "^3.9".
runtime.txt	Updated the specified Python runtime version from 3.8 to 3.9.

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📥 Commits

Reviewing files that changed from the base of the PR and between 38c4eb2 and 78c7a13.

📒 Files selected for processing (4)

• .github/workflows/actions.yml (0 hunks)
• README.md (1 hunks)
• pyproject.toml (1 hunks)
• runtime.txt (1 hunks)

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