Pin checks to Kube 1.25

Author: jmckulk

.github/workflows/test.yaml

@@ -51,7 +51,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kubernetes: [latest, v1.21]
+        kubernetes: [v1.25, v1.21]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3