Update GitHub Actions workflows. (#730)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 9983e5b04e591b71339227336332131e8fda153d.

Author: pulumi-bot

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

@@ -45,7 +45,7 @@ jobs:
         with:
           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/prerequisites.yml

@@ -74,7 +74,7 @@ jobs:
     - name: Unit-test provider code
       run: make test_provider
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@ad3126e916f78f00edff4ed0317cf185271ccc2d # v5.4.2
+      uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
     - if: inputs.is_pr

.github/workflows/publish.yml

@@ -59,7 +59,7 @@ 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