Add additional trigger events to "Compile Examples" CI workflow

The following additional events now trigger the workflow:
- Weekly scheduled trigger. This would catch breakage caused by the external library and platform dependencies.
- Trigger via the GitHub web interface.
- Trigger via the GitHub API.

Author: per1234

.github/workflows/compile-examples.yml

@@ -1,5 +1,6 @@
 name: Compile Examples
 
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
 on:
   pull_request:
     paths:
@@ -11,6 +12,11 @@ on:
       - .github/workflows/compile-examples.yml
       - examples/**
       - src/**
+  schedule:
+    # Run every Tuesday at 8 AM UTC to catch breakage caused by changes to external resources (libraries, platforms).
+    - cron: "0 8 * * TUE"
+  workflow_dispatch:
+  repository_dispatch:
 
 jobs:
   build: