Support for Sprig htpasswd function

[AlexanderK46]

Sprig has an htpasswd template function that would be really useful in secret transformation for configuring basic auth.

apiVersion: secrets.hashicorp.com/v1beta1
kind: VaultStaticSecret
metadata:
  name: basic-auth
  namespace: test
spec:
  vaultAuthRef: test
  path: test
  type: kv-v2
  mount: test
  hmacSecretData: true
  refreshAfter: 1m
  destination:
    name: basic-auth
    create: true
    overwrite: true
    type: Opaque
    transformation:
      excludes:
        - .*
      templates:
        auth:
          text: '{{- htpasswd (get .Secrets "user") (get .Secrets "password") -}}'

Using VSO 0.5.2 there is an error: Failed to build K8s secret data: parse error: template: test/basic-auth/auth:1: function "htpasswd" not defined

[benashz]

Fixed in #708

[benashz]

Released in https://github.com/hashicorp/vault-secrets-operator/releases/tag/v0.7.0