Upgrade go compiler to 1.19 (#84)

Version 1.16 was already unsupported and I believe is causing errors
generating binaries.

.github/workflows/workflow.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.16.x
+          go-version: 1.19.x
 
       - name: Checkout code
         uses: actions/checkout@v2
@@ -81,7 +81,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.19
 
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2