Update redirecting reference links in workflows

Even though these links were still reaching the intended page, it is best not to rely on redirects continuing to work
indefinitely.

Author: per1234

.github/workflows/publish-go-nightly-task.yml

@@ -10,7 +10,7 @@ env:
   AWS_PLUGIN_TARGET: /arduino-lint/
   ARTIFACT_NAME: dist
 
-# See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows
+# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
 on:
   schedule:
     # run every day at 1AM

.github/workflows/publish-go-tester-task.yml

@@ -1,7 +1,7 @@
 # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/publish-go-tester-task.md
 name: Publish Tester Build
 
-# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
 on:
   create:
   push: