build(deps): bump actions/cache from v2.1.1 to v2.1.2 (#572)

Bumps [actions/cache](https://github.com/actions/cache) from v2.1.1 to v2.1.2.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.1...d1255ad9362389eac595a9ae406b8e8cb3331f16)

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

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

.github/workflows/release-sims.yml

@@ -23,7 +23,7 @@ jobs:
       - name: install runsim
         run: |
           export GO111MODULE="on" && go get github.com/cosmos/tools/cmd/runsim@v1.0.0
-      - uses: actions/cache@v2.1.1
+      - uses: actions/cache@v2.1.2
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-runsim-binary
@@ -33,7 +33,7 @@ jobs:
     needs: install-runsim
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/cache@v2.1.1
+      - uses: actions/cache@v2.1.2
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-go-runsim-binary