chore(deps): pin dependencies

[huxuan]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	pinDigest	-> b4ffde6
actions/configure-pages	action	pinDigest	-> 1f0c5cd
actions/deploy-pages	action	pinDigest	-> decdde0
actions/download-artifact	action	pinDigest	-> eaceaf8
actions/upload-artifact	action	pinDigest	-> 5d5d22a
actions/upload-pages-artifact	action	pinDigest	-> 56afc60
docker/build-push-action	action	pinDigest	-> 4a13e50
docker/login-action	action	pinDigest	-> 343f7c4
docker/setup-buildx-action	action	pinDigest	-> f95db51
ghcr.io/renovatebot/renovate (source)	container	pinDigest	-> 6b55084
pdm-project/setup-pdm	action	pinDigest	-> c050bdc
readthedocs/actions	action	pinDigest	-> cc09204
softprops/action-gh-release	action	pinDigest	-> de2c0eb

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📚 Documentation preview 📚: https://ss-python--9.org.readthedocs.build/en/9/