chore: update kubernetes versions to test against (#1457)

Author: metacosm

.github/workflows/pr.yml

@@ -35,14 +35,7 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        kubernetes: ['v1.20.15','v1.21.12', 'v1.22.9', 'v1.23.6', 'v1.24.0' ]
-        exclude:
-          - java: 11
-            kubernetes: 'v1.20.15'
-          - java: 11
-            kubernetes: 'v1.21.12'
-          - java: 11
-            kubernetes: 'v1.22.9'
+        kubernetes: [ 'v1.22.13', 'v1.23.10', 'v1.24.4', 'v1.25.0' ]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Java and Maven
@@ -54,7 +47,7 @@ jobs:
       - name: Set up Minikube
         uses: manusa/actions-setup-minikube@v2.7.0
         with:
-          minikube version: 'v1.25.2'
+          minikube version: 'v1.26.0'
           kubernetes version: ${{ matrix.kubernetes }}
           driver: 'docker'
       - name: Run integration tests