chore(deps): update google-github-actions/auth action to v3 (#1285)

Co-authored-by: grafanarenovatebot[bot] <146220760+grafanarenovatebot[bot]@users.noreply.github.com>

Author: grafanarenovatebot[bot]

actions/login-to-gar/action.yaml

@@ -18,7 +18,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
+    - uses: google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093 # v3.0.0
       name: Auth with direct WIF
       id: auth_with_direct_wif
       with:

actions/login-to-gcs/action.yaml

@@ -69,7 +69,7 @@ runs:
         BUCKET: ${{ inputs.bucket }}
         ENVIRONMENT: ${{ inputs.environment }}
         SERVICE_ACCOUNT: ${{ inputs.service_account }}
-    - uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
+    - uses: google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093 # v3.0.0
       id: gcloud-auth
       with:
         workload_identity_provider: "projects/304398677251/locations/global/workloadIdentityPools/github/providers/github-provider"