[bot][dev]: 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]>

.github/workflows/gradle.yml

@@ -42,7 +42,7 @@ jobs:
         quickstartDir: ['hello-world', 'use-cases/school-timetabling', 'technology/java-spring-boot']
         java-version: [17] # JDK 19 not yet supported by Gradle.
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:

.github/workflows/nightly.yml

@@ -29,7 +29,7 @@ jobs:
           java-version: ${{ matrix.java-version }}
           maven-version: ${{ matrix.maven-version }}
           cache-key-prefix: ${{ runner.os }}-${{ matrix.java-version }}-maven${{ matrix.maven-version }}
-      - uses: actions/checkout@v3      
+      - uses: actions/checkout@v4      
       - name: Build with Maven
         run: mvn -B clean install --file pom.xml dependency:tree -Dmaven.wagon.httpconnectionManager.ttlSeconds=25 -Dmaven.wagon.http.retryHandler.count=3
       - name: Set build information

.github/workflows/quarkus-snapshot.yml

@@ -39,13 +39,13 @@ jobs:
           cache-key-prefix: ${{ runner.os }}-${{ matrix.java-version }}-maven${{ matrix.maven-version }}
 
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: current-repo
           ref: development
 
       - name: Checkout Ecosystem
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ env.ECOSYSTEM_CI_REPO }}
           ref: main