Bump actions/checkout from 3.1.0 to 4.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.1.0 to 4.1.0.
- [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/v3.1.0...8ade135a41bc03ea155e62e844d188df1ea18608)

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

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

.github/workflows/scorecard.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
         with:
           persist-credentials: false
 

.github/workflows/staleness_refresh.yml

@@ -24,7 +24,7 @@ jobs:
       fail-fast: false   # Don't cancel all jobs if one fails.
 
     steps:
-      - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
         with:
           # Note: this token has an expiration date, so if the workflow starts
           # failing then you may need to generate a fresh token.

.github/workflows/update_php_repo.yml

@@ -15,12 +15,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout protobuf-php
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
         with:
           repository: protocolbuffers/protobuf-php
           token: ${{ secrets.BOT_ACCESS_TOKEN }}
       - name: Clone protobuf
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
         with:
           path: protobuf
       - name: Configure Git Bot