Update actions/cache action to v5

Author: renovate[bot]

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
       - name: Cache Hytale Server
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             hytale/libs/HytaleServer.jar

.github/workflows/maven-publish.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
       - name: Cache Hytale Server
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             hytale/libs/HytaleServer.jar