Revert "ci: notarize: on: pull request: Test against main PRs"

Run actions/github-script@v6
Error: Error message: Unable to get ACTIONS_ID_TOKEN_REQUEST_URL env variable
    at Function.<anonymous> (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:585:23)
    at Generator.next (<anonymous>)
    at /home/runner/work/_actions/actions/github-script/v6/dist/index.js:522:71
    at new Promise (<anonymous>)
    at __webpack_modules__.8041.__awaiter (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:518:12)
    at Function.getIDToken (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:571:16)
    at Object.<anonymous> (/home/runner/work/_actions/actions/github-script/v6/dist/index.js:421:46)
    at Generator.next (<anonymous>)
    at /home/runner/work/_actions/actions/github-script/v6/dist/index.js:133:71
    at new Promise (<anonymous>)
Error: Unhandled error: Error: Error message: Unable to get ACTIONS_ID_TOKEN_REQUEST_URL env variable

This reverts commit d4ea9ea.

.github/workflows/notarize.yml

@@ -31,11 +31,6 @@ on:
         description: 'Subject for statement'
         default: ''
         type: string
-  pull_request:
-    branches:
-      - main
-    paths-ignore:
-      - '**.md'
 
 jobs:
   notarize: