ci: remove paths-ignore

Using paths-ignore as a short-circuit for doc-only PRs does not work:
branch protection rules cannot be passed.

Signed-off-by: Frederic BIDON <[email protected]>

Author: fredbi

.github/workflows/go-test.yml

@@ -6,12 +6,8 @@ on:
       - v*
     branches:
       - master
-    paths-ignore:
-      - '**.md'
 
   pull_request:
-    paths-ignore:
-      - '**.md'
 
 jobs:
   lint: