chore: update kubernetes versions to test against (#1078)

Author: metacosm

.github/workflows/pr.yml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        kubernetes: [ 'v1.17.13','v1.18.20','v1.19.14','v1.20.10','v1.21.4', 'v1.22.1', 'v1.23.0' ]
+        kubernetes: [ 'v1.17.13','v1.18.20','v1.19.14','v1.20.10','v1.21.11', 'v1.22.8', 'v1.23.5' ]
         exclude:
           - java: 11
             kubernetes: 'v1.18.20'
@@ -42,9 +42,9 @@ jobs:
           - java: 11
             kubernetes: 'v1.20.10'
           - java: 11
-            kubernetes: 'v1.21.4'
+            kubernetes: 'v1.21.11'
           - java: 11
-            kubernetes: 'v1.22.1'
+            kubernetes: 'v1.22.8'
     steps:
       - uses: actions/checkout@v3
       - name: Set up Java and Maven