ci: make Bedrock integration tests run nightly (#2366)

Author: anakin87

.github/workflows/amazon_bedrock.yml

@@ -73,7 +73,7 @@ jobs:
       # Do not authenticate on PRs from forks and on PRs created by dependabot
       - name: AWS authentication
         id: aws-auth
-        if: github.event.pull_request.head.repo.full_name == github.repository && !startsWith(github.event.pull_request.head.ref, 'dependabot/')
+        if: github.event_name == 'schedule' || (github.event.pull_request.head.repo.full_name == github.repository && !startsWith(github.event.pull_request.head.ref, 'dependabot/'))
         uses: aws-actions/configure-aws-credentials@00943011d9042930efac3dcd3a170e4273319bc8
         with:
           aws-region: ${{ env.AWS_REGION }}