build(deps): bump the ci group with 3 updates

Bumps the ci group with 3 updates: [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action), [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) and [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request).


Updates `docker/setup-buildx-action` from 3.2.0 to 3.3.0
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](2b51285047...d70bba72b1)

Updates `sigstore/cosign-installer` from 3.4.0 to 3.5.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](e1523de757...59acb6260d)

Updates `peter-evans/create-pull-request` from 6.0.2 to 6.0.3
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](70a41aba78...c55203cfde)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: ci
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/e2e-gcp.yaml

@@ -56,7 +56,7 @@ jobs:
       - name: Setup QEMU
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
       - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@2b51285047da1547ffb1b2203d8be4c0af6b1f20 # v3.2.0
+        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0
       - name: Log into us-central1-docker.pkg.dev
         uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0
         with: