chore(deps): bump actions/cache from 2.1.5 to 2.1.6

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.5 to 2.1.6.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](actions/cache@v2.1.5...v2.1.6)

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

.github/workflows/ci.yml

@@ -33,7 +33,7 @@ jobs:
           echo "::set-output name=cache::$(go env GOCACHE)"
           echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: |
             ${{ steps.go-env.outputs.cache }}

.github/workflows/coverage.yml

@@ -22,7 +22,7 @@ jobs:
           echo "::set-output name=cache::$(go env GOCACHE)"
           echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: |
             ${{ steps.go-env.outputs.cache }}

.github/workflows/e2e.yml

@@ -28,7 +28,7 @@ jobs:
         id: go-env
         run: echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: ${{ steps.go-env.outputs.modcache }}
           key: e2e-${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}

.github/workflows/lint.yml

@@ -45,7 +45,7 @@ jobs:
           echo "::set-output name=cache::$(go env GOCACHE)"
           echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: |
             ${{ steps.go-env.outputs.cache }}
@@ -81,7 +81,7 @@ jobs:
           echo "::set-output name=cache::$(go env GOCACHE)"
           echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: |
             ${{ steps.go-env.outputs.cache }}

.github/workflows/nightly.yml

@@ -22,7 +22,7 @@ jobs:
           echo "::set-output name=cache::$(go env GOCACHE)"
           echo "::set-output name=modcache::$(go env GOMODCACHE)"
       - name: Set up cache
-        uses: actions/cache@v2.1.5
+        uses: actions/cache@v2.1.6
         with:
           path: |
             ${{ steps.go-env.outputs.cache }}