Update GitHub Actions workflows. (#550)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 00e10f05873768ef726a49069865722353f8ca3a.

.github/workflows/build.yml

@@ -507,7 +507,7 @@ jobs:
     - name: Install Pulumi CLI
       uses: pulumi/actions@df5a93ad715135263c732ba288301bd044c383c0 # v6.3.0
     - name: Configure AWS Credentials
-      uses: aws-actions/configure-aws-credentials@f24d7193d98baebaeacc7e2227925dd47cc267f5 # v4.2.0
+      uses: aws-actions/configure-aws-credentials@b47578312673ae6fa5b5096b330d9fbac3d116df # v4.2.1
       with:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-region: us-east-2