ci: retry only in stable or release

.github/workflows/build.yml

@@ -247,12 +247,15 @@ jobs:
 
       - name: Test
         if: matrix.should_run == true
+        timeout-minutes: 120
         shell: bash
         env:
           PGHOST: localhost
         run: |
           i=1
-          while [ "$i" -le 10 ]; do
+          attempts=1
+          ${{ (github.ref == 'refs/heads/stable' || startsWith(github.ref, 'refs/tags/v')) }} && attempts=3
+          while [ "$i" -le "$attempts" ]; do
             if ./simplexmq-test; then
               break
             else
@@ -261,7 +264,7 @@ jobs:
               sleep 1
             fi
           done
-          if [ "$i" -gt 10 ]; then
-            echo "All 10 attempts failed."
+          if [ "$i" -gt "$attempts" ]; then
+            echo "All "$attempts" attempts failed."
             exit 1
           fi