Bump actions/cache from 3 to 4 (#134)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
           java-version: 17
           distribution: adopt
       - name: cache mvn repository
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
@@ -37,7 +37,7 @@ jobs:
           path: tenant-security-proxy
           token: ${{ secrets.WORKFLOW_PAT }}
       - name: cache cargo registry
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
           path: |
@@ -147,7 +147,7 @@ jobs:
           java-version: 17
           distribution: adopt
       - name: cache mvn repository
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}