ci: Update builds to Go 1.18

.github/workflows/continuous-integration.yaml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.16.x, 1.17.x]
+        go-version: [1.16.x, 1.17.x, 1.18.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     env:

.github/workflows/release.yaml

@@ -80,10 +80,10 @@ jobs:
         uses: actions/checkout@v3
 
       -
-        name: Install Go 1.17.2
+        name: Install Go 1.18
         uses: actions/setup-go@v3
         with:
-          go-version: '1.17.2'
+          go-version: '1.18'
 
       -
         name: Build TUSD

go.mod

@@ -2,7 +2,7 @@ module github.com/tus/tusd
 
 // Specify the Go version needed for the Heroku deployment
 // See https://github.com/heroku/heroku-buildpack-go#go-module-specifics
-// +heroku goVersion go1.16
+// +heroku goVersion go1.18
 go 1.16
 
 require (