Bump actions/setup-go from 1 to 2.1.3 (#10)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 1 to 2.1.3.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v1...v2.1.3)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/konfig-cli.yaml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Go 1.16
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v2.1.3
         with:
           go-version: 1.16
         id: go

.github/workflows/unit_tests.yaml

@@ -19,7 +19,7 @@ jobs:
 
     # Setup go 1.16
     - name: Setup Go 1.16
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2.1.3
       with:
         go-version: '^1.16.5'