.github: promotes go1.22.3

Author: chris-ramon

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ["1.20"]
+        go: ["1.22.3"]
     name: Go ${{ matrix.go }}
     steps:
       - uses: actions/checkout@v2