Bump actions/checkout from 2 to 3 (#5041)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-docker-image.yml

@@ -21,7 +21,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Clone pmmp/PocketMine-Docker repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: pmmp/PocketMine-Docker
           fetch-depth: 1

.github/workflows/draft-release.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
 

.github/workflows/main.yml

@@ -34,7 +34,7 @@ jobs:
         php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
@@ -72,7 +72,7 @@ jobs:
         php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
@@ -110,7 +110,7 @@ jobs:
         php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
 
@@ -150,7 +150,7 @@ jobs:
         php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
@@ -192,7 +192,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup PHP and tools
         uses: shivammathur/setup-php@2.18.1

.github/workflows/update-updater-api.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Install jq
         run: sudo apt update && sudo apt install jq -y
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           repository: pmmp/update.pmmp.io
           ssh-key: ${{ secrets.UPDATE_PMMP_IO_DEPLOY_KEY }}