fix: Use base flexible shapes instead of specific configurations

- Change from VM.Standard.E4.Flex-8-32 to VM.Standard.E4.Flex
- Change from VM.Standard.E5.Flex-8-32 to VM.Standard.E5.Flex
- Add on-demand capacity type requirement
- Fix OCI provider compatibility with flexible instance types
- Bump chart to 0.1.20

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: haimari

helm/karpenter-oci/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: karpenter-oci
 description: Karpenter with OCI provider support for Oracle Kubernetes Engine (OKE)
 type: application
-version: 0.1.19
+version: 0.1.20
 appVersion: "start-io-0207893"
 home: https://github.com/startappdev/karpenter
 sources:

helm/karpenter-oci/values.yaml

@@ -248,6 +248,10 @@ nodePools:
         - key: node.kubernetes.io/instance-type
           operator: In
           values:
-          - VM.Standard.E4.Flex-8-32
-          - VM.Standard.E5.Flex-8-32
+          - VM.Standard.E4.Flex
+          - VM.Standard.E5.Flex
+        - key: karpenter.sh/capacity-type
+          operator: In
+          values:
+          - on-demand
         taints: []