Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/test.yaml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
@@ -40,7 +40,7 @@ jobs:
       REDIS_BRANCH: "7.2"
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"
@@ -78,7 +78,7 @@ jobs:
       TRUFFLERUBYOPT: "--engine.Mode=latency"
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"
@@ -116,7 +116,7 @@ jobs:
       REDIS_BRANCH: "7.2"
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"
@@ -153,7 +153,7 @@ jobs:
       REDIS_BRANCH: ${{ matrix.redis }}
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"
@@ -188,7 +188,7 @@ jobs:
       REDIS_BRANCH: "7.0"
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"
@@ -225,7 +225,7 @@ jobs:
       BUNDLE_GEMFILE: cluster/Gemfile
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Print environment variables
         run: |
           echo "TIMEOUT=${TIMEOUT}"