Upgrade the Go version to 1.17.x (#117)

* github/workflow: temporary use neovim v0.5.0 instead of nighly

* github/workflow: upgrade go version to 1.17.x

* nvim: add go:build pragma

.github/workflows/benchmark.yml

@@ -19,7 +19,7 @@ jobs:
         os:
           - ubuntu-20.04  # https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-README.md
         go-version:
-          - 1.16.x
+          - 1.17.x
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -61,7 +61,7 @@ jobs:
       if: steps.cache-nvim.outputs.cache-hit != 'true'
       with:
         neovim: true
-        version: nightly
+        version: v0.5.0
 
     - name: Run Benchmark
       run: |

.github/workflows/test.yml

@@ -23,12 +23,12 @@ jobs:
       matrix:
         os:
           - ubuntu-20.04  # https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-README.md
-          - macos-11.0    # https://github.com/actions/virtual-environments/blob/main/images/macos/macos-11.0-Readme.md
+          - macos-11.0    # https://github.com/actions/virtual-environments/blob/main/images/macos/macos-11-Readme.md
           - windows-2019  # https://github.com/actions/virtual-environments/blob/main/images/win/Windows2019-Readme.md
         go-version:
-          - 1.14.x
           - 1.15.x
           - 1.16.x
+          - 1.17.x
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
@@ -66,7 +66,7 @@ jobs:
       if: steps.cache-nvim.outputs.cache-hit != 'true' || steps.cache-nvim-windows.outputs.cache-hit != 'true'
       with:
         neovim: true
-        version: nightly
+        version: v0.5.0
 
     - name: gofmt
       if: ${{ env.OS != 'windows' }}

go.mod

@@ -1,3 +1,3 @@
 module github.com/neovim/go-client
 
-go 1.14
+go 1.15

nvim/api_tool.go

@@ -1,3 +1,4 @@
+//go:build ignore
 // +build ignore
 
 // Command apitool generates api.go from api_def.go. The command also has