Installation scripts all assume default azure CLI output format of JSON

[swgriffith]

All of the existing setup scripts seem to make the assumption that the user has not changed their default azure cli output (via az configure), and is using the default 'json' format. All azure cli commands that query the response object should specify '-o json' or alternatively '-o tsv' if just trying to get the exact value without passing to jq.

Example:
https://raw.githubusercontent.com/Azure/karpenter-provider-azure/main/hack/deploy/configure-values.sh
AKS_JSON=$(az aks show --name "$CLUSTER_NAME" --resource-group "$AZURE_RESOURCE_GROUP")
AZURE_LOCATION=$(jq -r ".location" <<< "$AKS_JSON")

This could be modified to either of the following:

1. To use as is with JSON, but to ensure this works for users already:
   AKS_JSON=$(az aks show --name "$CLUSTER_NAME" --resource-group "$AZURE_RESOURCE_GROUP" -o json)
   AZURE_LOCATION=$(jq -r ".location" <<< "$AKS_JSON")

2. To avoid the need to parse json with jd
   AZURE_LOCATION=$(az aks show --name $CLUSTER_NAME --resource-group $AZURE_RESOURCE_GROUP -o tsv --query location)