Add Go 1.16

Signed-off-by: Kazuyoshi Kato <[email protected]>

Author: kzys

.github/workflows/go.yml

@@ -11,7 +11,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go: ['1.11', '1.12', '1.13', '1.14', '1.15']
+        go: ['1.11', '1.12', '1.13', '1.14', '1.15', '1.16']
         os: ['ubuntu-20.04']
       fail-fast: false
     name: ${{ matrix.os }} / Go ${{ matrix.go }}