temporary schedule every 15 minutes for test and fix schedule branch

.github/workflows/tests_latest.yml

@@ -4,8 +4,7 @@ on:
   push:
     branches: [ v0.12-release ]
   schedule:
-    - cron: '0 0 * * *'  # Runs daily at midnight UTC
-      branches: [ v0.12-release ]
+    - cron: '0,15,30,45 * * * *'  # Runs daily at midnight UTC
 
 env:
   TQDM_DISABLE: 1
@@ -15,6 +14,7 @@ jobs:
   tests:
     name: Tests with dev dependencies
     runs-on: 'ubuntu-latest'
+    if: github.ref == 'refs/heads/v0.12-release' # Ensure the job runs only for the specific branch
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python 3.12
@@ -36,7 +36,6 @@ jobs:
         run: |
           make test
       - name: Post to Slack
-        if: github.ref == 'refs/heads/main' && always()  # Check if the branch is main
         uses: huggingface/hf-workflows/.github/actions/post-slack@main
         with:
           slack_channel: ${{ env.CI_SLACK_CHANNEL }}