Update to Go 1.16 (#55)

Go 1.16 [1] is finally released so the Go version used for the
`actions/setup-go` action in the `ci` workflow has been updated from
`1.15.x` to `1.16.x` and the defined Go version in the `go.mod` file
has been bumped to `go 1.16`.

[1]: https://golang.org/doc/go1.16

Closes GH-54

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: "1.15.x"
+          go-version: "1.16.x"
       - name: "Run golangci-lint"
         # The official golangci-lint action created and maintained by the golangci-lint project.
         # See https://github.com/golangci/golangci-lint-action for more details.
@@ -55,7 +55,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: ["1.15.x"]
+        go-version: ["1.16.x"]
         os: [macos-latest, ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     needs:

go.mod

@@ -1,5 +1,5 @@
 module github.com/svengreb/tmpl-go
 
-go 1.15
+go 1.16
 
 require github.com/stretchr/testify v1.7.0