[HWORKS-2055] hopsworks-api uses deprecated actions/cache: v2 which fails the PR tests (logicalclocks#496)

Author: robzor92

.github/workflows/java.yml

@@ -21,7 +21,7 @@ jobs:
           distribution: "adopt"
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('java/pom.xml') }}
@@ -50,7 +50,7 @@ jobs:
           distribution: "adopt"
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('java/pom.xml') }}
@@ -79,7 +79,7 @@ jobs:
           distribution: "adopt"
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('java/pom.xml') }}

.github/workflows/mkdocs-main.yml

@@ -27,7 +27,7 @@ jobs:
         run: python3 ./python/auto_doc.py
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('java/pom.xml') }}

.github/workflows/mkdocs-release.yml

@@ -32,7 +32,7 @@ jobs:
         run: python3 ./python/auto_doc.py
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('java/pom.xml') }}