Add workflow_dispatch trigger to GitHub Actions tests workflow

- Introduced a workflow_dispatch trigger in the tests.yaml file to allow manual triggering of the test workflow in addition to the scheduled runs. This enhancement provides greater flexibility for testing on demand.

Author: teetangh

.github/workflows/tests.yaml

@@ -7,6 +7,7 @@ on:
     branches: [main]
   schedule:
     - cron: "20 9 * * *"
+  workflow_dispatch:
 
 jobs:
   run_tests: