Bump actions/cache from v2 to v2.1.4

Bumps [actions/cache](https://github.com/actions/cache) from v2 to v2.1.4.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2...26968a09c0ea4f3e233fdddbafd1166051a095f6)

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
           java-version: ${{ matrix.java }}
           architecture: x64
       - name: Cache Maven packages
-        uses: actions/cache@v2
+        uses: actions/cache@v2.1.4
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
           architecture: x64
 
       - name: Cache Maven packages
-        uses: actions/cache@v2
+        uses: actions/cache@v2.1.4
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}