Update Go version in head tests (#1305)

Author: jkaflik

.github/workflows/run-tests-head.yml

@@ -18,7 +18,7 @@ jobs:
       max-parallel: 1
       matrix:
         go:
-          - "1.20"
+          - "1.22"
           - "1.21"
     steps:
       - uses: actions/checkout@main