Update GitHub Actions workflows. (#716)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 02f02bb0bfe879d167ed8f335b4950208454bafb.

---------

Co-authored-by: Pulumi Bot <bot@pulumi.com>
Co-authored-by: Bryce Lampe <bryce@pulumi.com>

.github/workflows/comment-on-stale-issues.yml

@@ -1,6 +1,7 @@
 name: "Comment on stale issues"
 
 on:
+  workflow_dispatch: {}
   schedule:
   - cron: "46 4 * * *" # run once per day
 
@@ -9,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Stale issue job
     steps:
-    - uses: aws-actions/stale-issue-cleanup@5650b49bcd757a078f6ca06c373d7807b773f9bc # v7.1.0
+    - uses: aws-actions/stale-issue-cleanup@db44981197ae9cdada9a9c779c052439f9d62eac
       with:
         issue-types: issues # only look at issues (ignore pull-requests)