fix: main branch ruleset shouldn't prevent pull request merges

Author: bruzina

README.md

@@ -132,7 +132,7 @@ Set up GitHub actions, variables and secrets:
   - Secrets and variables / Actions / Actions secrets and variables
     - Secrets
       - **New repository secret**
-        - `APP_PEM_FILE` (`GITHUB_APP_PEM_FILE` contents)
+        - `GH_APP_PEM_FILE` (`GITHUB_APP_PEM_FILE` contents)
         - `AWS_ACCESS_KEY_ID`
         - `AWS_SECRET_ACCESS_KEY`
     - Variables

test.yaml

@@ -14,12 +14,10 @@ organization:
               - ~DEFAULT_BRANCH
         rules:
           creation: true
-          update: true
           deletion: true
           pull_request:
             required_approving_review_count: 0
           required_linear_history: true
-          required_signatures: true
 repositories:
   - name: .github
     # Repository metadata