chore(deps): update actions/cache action to v3 (open-feature#101)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Signed-off-by: Bhandari, Pramesh(AWF) <[email protected]>

Author: renovate[bot]

.github/workflows/merge.yml

@@ -33,7 +33,7 @@ jobs:
         server-password: ${{ secrets.OSSRH_PASSWORD }}
 
     - name: Cache local Maven repository
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/.m2/repository
         key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}

.github/workflows/pullrequest.yml

@@ -26,7 +26,7 @@ jobs:
           cache: maven
 
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}