github/workflow: add 1.16.x and drop 1.13.x (#98)

Author: zchee

.github/workflows/test.yml

@@ -29,10 +29,9 @@ jobs:
           - macos-10.15   # https://github.com/actions/virtual-environments/blob/macOS-10.15/20201212.1/images/macos/macos-10.15-Readme.md
           - windows-2019  # https://github.com/actions/virtual-environments/blob/win19/20201210.0/images/win/Windows2019-Readme.md
         go-version:
-          - 1.13.x
           - 1.14.x
           - 1.15.x
-          - 1.16.0-beta1
+          - 1.16.x
       fail-fast: false
 
     runs-on: ${{ matrix.os }}

go.mod

@@ -1,3 +1,3 @@
 module github.com/neovim/go-client
 
-go 1.13
+go 1.14