chore(deps): pin dependencies

[zon-renovate]

This PR contains the following updates:

Package	Type	Update	Change
ZeitOnline/gh-action-baseproject	action	pinDigest	-> 9ed16e2
actions/checkout	action	pinDigest	-> 11bd719
actions/upload-artifact	action	pinDigest	-> 65c4c4a
azure/setup-kubectl	action	pinDigest	-> 3e0aec4
crazy-max/ghaction-import-gpg	action	pinDigest	-> cb9bde2
docker/build-push-action	action	pinDigest	-> ca052bb
enricomi/publish-unit-test-result-action	action	pinDigest	-> 170bf24
fjogeleit/http-request-action	action	pinDigest	-> bf78da1
googleapis/release-please-action	action	pinDigest	-> 7987652
hashicorp/vault-action	action	pinDigest	-> 9c2d817
imranismail/setup-kustomize	action	pinDigest	-> 2ba527d

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