Run docs.yml for all changes

Restricting the workflow to run on changes to `*.rst` files only will prevent
CI from catching mistakes in the workflow itself, for example on Dependabot
updates.

Author: TimWolla

.github/workflows/docs.yml

@@ -4,11 +4,7 @@ on:
   push:
     branches:
       - main
-    paths:
-      - '*.rst'
   pull_request:
-    paths:
-      - '*.rst'
 
 permissions:
   contents: read