Guard clusterAvailable conditions and fix YAML quoting in nodepool adapter

Add has() guard to clusterAvailable expression so missing conditions
field returns false instead of erroring. Switch outer double quotes to
single quotes on nodepoolSpec index expressions to avoid nested quote
YAML parsing errors.

Author: vkareh

helm/adapter-hypershift-nodepool/adapter-task-config.yaml

@@ -94,7 +94,13 @@ preconditions:
     capture:
       - name: "clusterAvailable"
         expression: |
-          items.filter(s, s.adapter == "adapter-hypershift").size() > 0 ? (items.filter(s, s.adapter == "adapter-hypershift")[0].conditions.filter(c, c.type == "Available").size() > 0 ? items.filter(s, s.adapter == "adapter-hypershift")[0].conditions.filter(c, c.type == "Available")[0].status == "True" : false) : false
+          items.filter(s, s.adapter == "adapter-hypershift").size() > 0
+            ? (has(items.filter(s, s.adapter == "adapter-hypershift")[0].conditions)
+                ? (items.filter(s, s.adapter == "adapter-hypershift")[0].conditions.filter(c, c.type == "Available").size() > 0
+                    ? items.filter(s, s.adapter == "adapter-hypershift")[0].conditions.filter(c, c.type == "Available")[0].status == "True"
+                    : false)
+                : false)
+            : false
 
   - name: "validationCheck"
     # Only proceed if nodepool is NOT Ready AND HostedCluster adapter reports Available
@@ -127,15 +133,15 @@ resources:
         platform:
           type: OCI
           oci:
-            instanceShape: "{{ index .nodepoolSpec "instanceShape" | default .ociShape }}"
+            instanceShape: '{{ index .nodepoolSpec "instanceShape" | default .ociShape }}'
             instanceShapeConfig:
               ocpus: {{ index .nodepoolSpec "ocpus" | default .ociOcpus }}
               memoryInGBs: {{ index .nodepoolSpec "memoryInGBs" | default .ociMemoryGBs }}
-            availabilityDomain: "{{ index .nodepoolSpec "availabilityDomain" | default .ociAD }}"
-            subnetId: "{{ index .nodepoolSpec "subnetId" | default .ociSubnetId }}"
+            availabilityDomain: '{{ index .nodepoolSpec "availabilityDomain" | default .ociAD }}'
+            subnetId: '{{ index .nodepoolSpec "subnetId" | default .ociSubnetId }}'
             bootVolumeSize: {{ index .nodepoolSpec "bootVolumeSize" | default .ociBootVolumeGB }}
         release:
-          image: "{{ index .nodepoolSpec "releaseImage" | default "quay.io/openshift-release-dev/ocp-release:4.20.2-x86_64" }}"
+          image: '{{ index .nodepoolSpec "releaseImage" | default "quay.io/openshift-release-dev/ocp-release:4.20.2-x86_64" }}'
     discovery:
       namespace: "{{ .namespace }}"
       by_selectors: