chore(deps): bump actions/checkout from 2 to 3 (#6112)

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/appengine_deploy.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE.
       # When running manually this checks out the master branch.
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Prepare demo files
         # Install all dependencies, then copy all the files needed for demos.

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         persist-credentials: false
 
@@ -55,7 +55,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Use Node.js 16.x
       uses: actions/setup-node@v3

.github/workflows/check_clang_format.yml

@@ -11,7 +11,7 @@ jobs:
   clang-formatter:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - uses: DoozyX/clang-format-lint-action@v0.13
       with:

.github/workflows/update_metadata.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
     - name: Check Out Blockly
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         ref: 'develop'