Add go1.19 and remove go1.17 from workflow

Author: jstemmer

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.18', '1.17', '1.13' ]
+        go: [ '1.19', '1.18', '1.13' ]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Go