Pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
abatilo/actions-poetry	action	pin	v4 → v4.0.0
actions/cache	action	pin	v5 → v5.0.5
actions/checkout	action	pin	v6 → v6.0.3
actions/setup-python	action	pin	v6 → v6.2.0
docker/build-push-action	action	pin	v7 → v7.2.0
docker/login-action	action	pin	v4 → v4.2.0
docker/setup-buildx-action	action	pin	v4 → v4.1.0
shivammathur/setup-php	action	pin	v2 → 2.37.1

Add the preset :preserveSemverRanges to your config if you don't want to pin your dependencies.

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