Trigger testing workflow on change to go.mod/sum

Previously, the workflow only ran when the .go files, taskfile, or the workflow itself were modified.

Author: per1234

.github/workflows/test-go.yml

@@ -7,11 +7,15 @@ on:
       - ".github/workflows/test-go.yml"
       - "Taskfile.yml"
       - "**.go"
+      - "go.mod"
+      - "go.sum"
   pull_request:
     paths:
       - ".github/workflows/test-go.yml"
       - "Taskfile.yml"
       - "**.go"
+      - "go.mod"
+      - "go.sum"
   workflow_dispatch:
   repository_dispatch: