Bump actions/cache from v2 to v2.1.4 (#146)

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>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -32,7 +32,7 @@ jobs:
         node-version: ${{ matrix.node-version }}
 
     - name: Load cached dependencies
-      uses: actions/cache@v2
+      uses: actions/cache@v2.1.4
       id: cache
       with:
         path: |
@@ -144,7 +144,7 @@ jobs:
         node-version: ${{ matrix.node-version }}
 
     - name: Load cached dependencies
-      uses: actions/cache@v2
+      uses: actions/cache@v2.1.4
       id: cache
       with:
         path: |