github: drop go1.17, and add go1.21 & go1.22

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

Author: vbatts

.github/workflows/go.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.17', '1.18', '1.19', '1.20']
+        go: ['1.18', '1.19', '1.20', '1.21', '1.22']
 
     name: build and vet
     steps: