Nifi-registry not able Intregrate with Github

[NechiHeni]

am deploying nifi and nifi-registry on aks and everything is working but the integration with git.
I try almost everything
change persistance from true to false, tried username and password auth.
this code is part of the values.yaml of nifi.

registry:
  ## If true, install the Nifi registry
  enabled: true
  url: ""
  port: 80
  # Default values for nifi-registry.
  # This is a YAML-formatted file.
  # Declare variables to be passed into your templates.

  replicaCount: 1

  image:
    repository: apache/nifi-registry
    pullPolicy: Always
    tag: "0.8.0"
  
  initContainers:
  git:
    image: alpine/git
    tag: v2.26.2
  # alpine:
  #   image: alpine
  #   tag: "3.6"
  # Additional environment variables to set for the initContainers
  extraEnvs: []
  # extraEnvs:
  #   - name: FOO
  #     value: bar

  service:
    type: LoadBalancer
    httpsport: 18080

  ingress:
    enabled: false
    annotations: {}
      # kubernetes.io/ingress.class: nginx
      # kubernetes.io/tls-acme: "true"
    hosts:
      - host: chart-example.local
        paths: []
    tls: []
    #  - secretName: chart-example-tls
    #    hosts:
    #      - chart-example.local

  ## Persist data to a persistent volume
  persistence:
    enabled: false
    database:
      # storageClass: "-"
      accessMode: ReadWriteOnce
      size: 1Gi
    flowStorage:
      # storageClass: "-"
      accessMode: ReadWriteOnce
      size: 1Gi

  resources: {}
    # We usually recommend not to specify default resources and to leave this as a conscious
    # choice for the user. This also increases chances charts run on environments with little
    # resources, such as Minikube. If you do want to specify resources, uncomment the following
    # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
    # limits:
    #   cpu: 100m
    #   memory: 128Mi
    # requests:
    #   cpu: 100m
    #   memory: 128Mi


  bundleProvider:
    file:
      enabled: true
      # -- the path in the running pod where the git repo will be cloned into
      # either absolute or relative to the container working directory, which is NIFI_REGISTRY_HOME
      # If you elect to use a non-default location, you must also update the property associated.
      storageDirectory: ./extension_bundles

  flowProvider:
    git:
      enabled: true
      # Repository to be cloned at pod startup
      url: '[email protected]:N****ni/***.git'
      # Sets NIFI_REGISTRY_GIT_REMOTE for update_flow_provider.sh
      remote: 'origin'
      # Sets NIFI_REGISTRY_GIT_USER for update_flow_provider.sh
      user: 
      # Sets NIFI_REGISTRY_GIT_PASSWORD for update_flow_provider.sh
      password:
      # passwordSecret(Name|Key) is the name and key of the k8s secret holding the password (can be used instead of password)
      # passwordSecretName:
      # passwordSecretKey:
      # Global Git configuration See https://git-scm.com/docs/git-config for more details.
      config:
        enabled: false
        data: ""
        # data: |
        #   [credential "https://github.com"]
        #           username = foo
      ssh:
        # To use an SSH public/private keypair as a Kubernetes secret:
        # 1. Generate a SSH key named id_rsa:
        #      ssh-keygen -q -N "" -f ./id_rsa
        # 2. Create a Kubernetes secret:
        #      kubectl -n nifi-registry create secret generic nifi-registry-git-ssh --from-file=./id_rsa
        # 3. Don't check these key files into your Git repository! Once you've created
        #    the Kubernetes secret, Delete the private key:
        #      rm ./id_rsa
        # 4. Add ./id_rsa.pub as a deployment key with write access in your Git repo
        # 5. Set the secret name (e.g., nifi-registry-git-ssh) here:
        secretName: 'nifi-registry-git-ssh'
        # 6. Provide the public key(s) of the SSH server(s) for $HOME/.ssh/known_hosts
        knownHosts: |
         github.com ssh-rsa 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
        # 7. Set the GIT_SSH_COMMAND
        gitSshCommand: "ssh -v"
        # 8. specify the config which would go in $HOME/.ssh/config file, for e.g.
        # config: |
        #   Host github.com
        #   ProxyCommand socat STDIO PROXY:<proxyIP>:%h:%p,proxyport=<proxyPort>,proxyauth=<username:password>
        #   User git
        #   Hostname ssh.github.com
        #   Port 443
        #   IdentityFile /etc/fluxd/ssh/identity
        # or, if using an SSH public/private keypair:
        config: |
          StrictHostKeyChecking accept-new
    postgres:
      enabled: false
      driverURL: https://jdbc.postgresql.org/download/
      fileName: postgresql-42.2.6.jar
      driverClass: org.postgresql.Driver
      url: jdbc:postgresql://localhost/nifireg
      username: nifireg
      password: nifireg