Update GitHub Actions workflows. (#5553)

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

Author: pulumi-bot

.github/workflows/main-post-build.yml

@@ -49,7 +49,7 @@ jobs:
           submodules: true
           persist-credentials: false
       - 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_CORP_S3_UPLOAD_ACCESS_KEY_ID }}
           aws-region: us-west-2

.github/workflows/publish.yml

@@ -63,7 +63,7 @@ jobs:
         tools: pulumictl, pulumicli, go, schema-tools
         cache-go: false
     - 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