Deprecate setting resources as string.

[lkysow]

Deprecate setting:

client:
    resources: |
      requests:
        memory: "128Mi"
        cpu: "250m"
      limits:
        memory: "256Mi"
        cpu: "500m"

for

client:
    resources:
      requests:
        memory: "128Mi"
        cpu: "250m"
      limits:
        memory: "256Mi"
        cpu: "500m"

Applies to server, client and mesh gateway resources. Lays groundwork for upcoming resource settings.

Related to the work done on the vault chart in hashicorp/vault-helm#272

[ishustava]

Looks good 👍