Update Terraform versions used to check manifest examples with in CI

Author: alexsomesan

.github/workflows/check_examples.yaml

@@ -26,11 +26,13 @@ jobs:
     strategy:
       matrix:
         terraform_version:
-          - "1.6.0"
-          - "1.7.0"
-          - "1.8.0"
-          - "1.10.1"
-          - "1.11.2"
+          - "1.6.6"
+          - "1.7.5"
+          - "1.8.5"
+          - "1.9.8"
+          - "1.10.5"
+          - "1.11.4"
+          - "1.21.1"
     env:
       TF_X_KUBERNETES_MANIFEST_RESOURCE: 1
       TERM: linux