feat: add workflow for automatic awscli version upgrade in aws-api-mcp

[sten-vw]

Summary

Adds a new workflow to upgrade the awscli version in src/aws-api-mcp-server on a daily schedule (and with option to manually trigger).

Changes

New workflow: .github/workflows/aws-api-mcp-upgrade-version.yml
Automated scheduling: Runs daily at 6 AM Amsterdam time
Manual trigger: Can be triggered via workflow_dispatch
Secure operations: GPG-signed commits with proper cleanup
Steps:

• Fetches latest AWS CLI version from PyPI
• Updates pyproject.toml with exact version pinning (==)
• Creates versioned upgrade branches: upgrade/aws-api-mcp-awscli-v$LATEST_VERSION
• Generates pull requests with standardized format

User experience

I tested it on my own fork, with the bot and gpg environment variables also set.
Example run: https://github.com/sten-vw/mcp/actions/runs/18381707034/job/52369459463
Example PR: sten-vw#12
Example run (already up to date version, no PR created): https://github.com/sten-vw/mcp/actions/runs/18273564341/job/52020474397

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• I have reviewed the contributing guidelines
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented

Is this a breaking change? (Y/N)

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.45%. Comparing base (ea96b27) to head (a3c2525).
⚠️ Report is 33 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1435   +/-   ##
=======================================
  Coverage   89.45%   89.45%           
=======================================
  Files         726      726           
  Lines       50304    50351   +47     
  Branches     7942     7951    +9     
=======================================
+ Hits        44997    45044   +47     
  Misses       3452     3452           
  Partials     1855     1855           

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[scottschreckengaust]

All that is needed is a conversion of a UV to public ecr

[scottschreckengaust]

Sorry, I was confused. Public ECR isn't relevant here.

[scottschreckengaust]

LGTM