How to use --override-spec in cfn-lint v1+

[chensun01]

Environment
cfn-lint version: 1.22.3
OS: macOS / Ubuntu
Python version: 3.9.6
Installation method: pip install cfn-lint

Description
I'm trying to upgrade from cfn-lint 0.87.x to 1.x
For adding compatibility with custom macro resources we are trying to add custom properties to some resource types, for example "AWS::EC2::NetworkAcl" via the --override-spec command. We currently integrate cfn-lint 0.x with our CI pipelines successfully as of today. While with the same command on cfn-lint v1+, it is not working.

Here's a simple example, override-file.json:

{
    "ResourceTypes": {
        "AWS::EC2::NetworkAcl": {
            "Documentation": "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-networkacl.html",
            "Properties": {
                "Inbound": {
                    "Required": false
                },
                "Outbound": {
                    "Required": false
                },
                "Association": {
                    "Required": false
                }
            }
        }
    }
}

CFN template test-vpc.yaml:

... ...
  NaclPublic:
    Type: AWS::EC2::NetworkAcl
    Condition: HasPublicSubnets
    Properties:
      VpcId: !Ref VPC
      Inbound:
        - "100,-1,allow,10.0.0.0/8,0-65535"
      Outbound:
        - "100,-1,allow,10.0.0.0/8,0-65535"
      Association:
        - SubnetAPub
        - SubnetBPub
        - SubnetCPub
      Tags:
      - Key: AccessControl
        Value: PUBLIC
        ... ...

Transform:
  - NaclExpander

cfn-lint command:
cfn-lint test-vpc.yaml --override-spec override-file.json

Expected Behavior
The --override-spec flag should successfully load the custom spec file and apply it, returning no error as cfn-lint v0.87.x.

Current Behavior
The --override-spec parameter is apparently ignored. cfn-lint does not seem to process the custom spec file.
Error log:

E3002 Additional properties are not allowed ('Inbound' was unexpected)
test-vpc.yaml:195:7

E3002 Additional properties are not allowed ('Outbound' was unexpected)
test-vpc.yaml:200:7

E3002 Additional properties are not allowed ('Association' was unexpected)
test-vpc.yaml:205:7