ci: set timeout for parallel tests to 20min (#2652)

Author: PProfizi

.github/workflows/tests.yml

@@ -234,7 +234,7 @@ jobs:
       - name: "Run compatible tests in parallel"
         uses: nick-fields/retry@v3
         with:
-          timeout_minutes: 15
+          timeout_minutes: 20
           max_attempts: 2
           shell: bash
           command: |