Add path to job workflow for go-verdiff (operator-framework#1954)

This appears to be confusing the jobs reporting.

Signed-off-by: Todd Short <[email protected]>

Author: tmshort

.github/workflows/go-verdiff.yaml

@@ -3,6 +3,7 @@ on:
   pull_request:
     paths:
     - '**.mod'
+    - '.github/workflows/go-verdiff.yaml'
     branches:
     - main
 jobs: