Use default permissions for GitHub workflows (#2240)

Author: mathbunnyru

.github/workflows/docker.yml

@@ -523,8 +523,6 @@ jobs:
     uses: ./.github/workflows/docker-wiki-update.yml
     needs: [aarch64-images-tag-push-fast, x86_64-images-tag-push-fast]
     if: contains(github.event.pull_request.title, '[FAST_BUILD]')
-    permissions:
-      contents: write
 
   contributed-recipes:
     uses: ./.github/workflows/contributed-recipes.yml

.github/workflows/pre-commit.yml

@@ -7,9 +7,6 @@ on:
       - main
   workflow_dispatch:
 
-permissions:
-  contents: read
-
 jobs:
   run-hooks:
     runs-on: ubuntu-24.04

.github/workflows/sphinx.yml

@@ -27,8 +27,6 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 10
     if: github.repository_owner == 'jupyter' || github.repository_owner == 'mathbunnyru' || github.event_name != 'schedule'
-    permissions:
-      contents: write
 
     steps:
       - name: Checkout Repo ⚡️