Add ratelimit retry to discord changelog bot and continue publish changelog error. (#37051)

* Add ratelimit retry to discord changelog bot and continue publish changelog error.

oops we missed some changelogs cause of this... this should prevent anything funny

* Update actions_changelogs_since_last_run.py

.github/workflows/publish-testing.yml

@@ -2,6 +2,7 @@
 
 concurrency:
   group: publish-testing
+  cancel-in-progress: true
 
 on:
   workflow_dispatch:

.github/workflows/publish.yml

@@ -2,6 +2,7 @@ name: Publish
 
 concurrency:
   group: publish
+  cancel-in-progress: true
 
 on:
   workflow_dispatch:
@@ -48,12 +49,14 @@ jobs:
         GITHUB_REPOSITORY: ${{ vars.GITHUB_REPOSITORY }}
 
     - name: Publish changelog (Discord)
+      continue-on-error: true
       run: Tools/actions_changelogs_since_last_run.py
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         DISCORD_WEBHOOK_URL: ${{ secrets.CHANGELOG_DISCORD_WEBHOOK }}
 
     - name: Publish changelog (RSS)
+      continue-on-error: true
       run: Tools/actions_changelog_rss.py
       env:
         CHANGELOG_RSS_KEY: ${{ secrets.CHANGELOG_RSS_KEY }}