chore(deps): Update dependencies for github to v3

Author: renovate-bot

.github/workflows/tests.yaml

@@ -59,7 +59,7 @@ jobs:
         name: Authenticate to Google Cloud
         # only needed for Flakybot on periodic (schedule) and continuous (push) events
         if: ${{ github.event_name == 'schedule' || github.event_name == 'push' }}
-        uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
+        uses: google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093 # v3.0.0
         with:
           workload_identity_provider: ${{ vars.PROVIDER_NAME }}
           service_account: ${{ vars.SERVICE_ACCOUNT }}
@@ -123,15 +123,15 @@ jobs:
 
       - id: 'auth'
         name: 'Authenticate to Google Cloud'
-        uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
+        uses: google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093 # v3.0.0
         with:
           workload_identity_provider: ${{ vars.PROVIDER_NAME }}
           service_account: ${{ vars.SERVICE_ACCOUNT }}
           access_token_lifetime: 600s
 
       - id: 'secrets'
         name: Get secrets
-        uses: google-github-actions/get-secretmanager-secrets@50ec04d56ddf2740b0bde82926cc742f90e06d2b # v2.2.4
+        uses: google-github-actions/get-secretmanager-secrets@bc9c54b29fdffb8a47776820a7d26e77b379d262 # v3.0.0
         with:
           secrets: |-
             ALLOYDB_INSTANCE_URI:${{ vars.GOOGLE_CLOUD_PROJECT }}/ALLOYDB_INSTANCE_URI