Bump actions/cache from 3 to 4

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

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

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

.github/workflows/maven-build-pr.yml

@@ -18,7 +18,7 @@ jobs:
           fetch-depth: 0
 
       - name: Cache maven repository
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.m2/repository
@@ -47,7 +47,7 @@ jobs:
           mvn install sonar:sonar -P coverage -Dsonar.projectKey=FraunhoferIOSB_FAAAST-Registry --settings maven-ci-settings.xml -B
 
       - name: Restore CVD Database from Cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: |
             ~/.m2/repository/org/owasp/dependency-check-data
@@ -62,7 +62,7 @@ jobs:
           mvn -B -P owasp -DnvdApiDelay=6000 --settings maven-ci-settings.xml org.owasp:dependency-check-maven:update-only
 
       - name: Save CVD Database to Cache
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         with:
           path: |
             ~/.m2/repository/org/owasp/dependency-check-data

.github/workflows/maven-build.yml

@@ -19,7 +19,7 @@ jobs:
         fetch-depth: 0
 
     - name: Cache maven repository
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: |
           ~/.m2/repository
@@ -45,7 +45,7 @@ jobs:
         mvn install sonar:sonar -P coverage -Dsonar.projectKey=FraunhoferIOSB_FAAAST-Registry --settings maven-ci-settings.xml -B
 
     - name: Restore CVD Database from Cache
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       with:
         path: |
           ~/.m2/repository/org/owasp/dependency-check-data
@@ -60,7 +60,7 @@ jobs:
         mvn -B -P owasp -DnvdApiDelay=6000 --settings maven-ci-settings.xml org.owasp:dependency-check-maven:update-only
 
     - name: Save CVD Database to Cache
-      uses: actions/cache/save@v3
+      uses: actions/cache/save@v4
       with:
         path: |
           ~/.m2/repository/org/owasp/dependency-check-data

.github/workflows/maven-deploy.yml

@@ -29,7 +29,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Cache maven repository
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.m2/repository
         key: ${{ runner.os }}-maven-dpl-${{ hashFiles('**/pom.xml') }}
@@ -57,7 +57,7 @@ jobs:
         mvn install -P test --settings maven-ci-settings.xml -B
 
     - name: Restore CVD Database from Cache
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       with:
         path: |
           ~/.m2/repository/org/owasp/dependency-check-data
@@ -72,7 +72,7 @@ jobs:
         mvn -B -P owasp -DnvdApiDelay=6000 --settings maven-ci-settings.xml org.owasp:dependency-check-maven:update-only
 
     - name: Save CVD Database to Cache
-      uses: actions/cache/save@v3
+      uses: actions/cache/save@v4
       with:
         path: |
           ~/.m2/repository/org/owasp/dependency-check-data