bump actions/stale to v3.0.14

updates label handling to account for localization.

Signed-off-by: Matthew Fisher <matt.fisher@microsoft.com>

.github/workflows/stale-issue-bot.yaml

@@ -6,11 +6,11 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v3
+    - uses: actions/stale@v3.0.14
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'This issue has been marked as stale because it has been open for 90 days with no activity. This thread will be automatically closed in 30 days if no further activity occurs.'
-        exempt-issue-labels: 'keep+open,v4.x'
+        exempt-issue-labels: 'keep open,v4.x'
         days-before-stale: 90
         days-before-close: 30
         operations-per-run: 100