update actions cache version

Signed-off-by: Prabhu Subramanian <[email protected]>

Author: prabhu

.github/workflows/pr.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '21'
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.sbt

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '21'
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.sbt