ci: use Go 1.19

The master branch supports the latest released version of Go. We cut a
new release of Staticcheck when the next version of Go releases, at
which point that release will support 1.19 and 1.20.

All that is to say that the master branch doesn't care about Go 1.18.

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["windows-latest", "ubuntu-latest", "macOS-latest"]
-        go: ["1.18.x"]
+        go: ["1.19.x"]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v1
@@ -40,7 +40,7 @@ jobs:
     steps:
     - uses: WillAbides/setup-go-faster@v1.7.0
       with:
-        go-version: "1.18.x"
+        go-version: "1.19.x"
     # this downloads all artifacts of the current workflow into the current working directory, creating one directory per artifact
     - uses: actions/download-artifact@v3
     - id: glob
@@ -51,6 +51,6 @@ jobs:
     - uses: dominikh/staticcheck-action@9f77055cca7bfaafb836cbd6720865187f5fbf51
       with:
         version: "3d6c86f0908ab82d6ff280219e2968ee65f83b2e"
-        min-go-version: "1.17"
+        min-go-version: "1.19"
         install-go: false
         merge-files: ${{ steps.glob.outputs.files }}