chore: remove copywrite invokation

This will be handled in a separate workflow, refer to #105 for more

.github/workflows/pulls.yml

@@ -21,10 +21,6 @@ jobs:
         run: npm ci
       - name: build
         run: npm run build
-      - name: Setup Copywrite tool
-        uses: hashicorp/[email protected]
-      - name: Add headers using Copywrite tool
-        run: copywrite headers
       - name: Find mutations
         id: self_mutation
         run: |-