Alpha builds workflow: restrict runs to deps/*/src/**

If a test or doc file changes, we do not need
to trigger a new alpha build, or at least
we should first see some evidence that we do.

Author:    Michael Klishin <[email protected]>

Author: michaelklishin

.github/workflows/alpha-build.yaml

@@ -5,7 +5,7 @@ on:
     branches:
       - "main"
     paths:
-      - "deps/**"
+      - "deps/*/src/**"
       - ".github/workflows/**"
 env:
   DEV_WORKFLOW_REPOSITORY: "rabbitmq/server-packages"