Prevent associating a public IPv4 address to an EC2 instance

[0xjjoyy]

Use Case - Is your feature request related to a problem? Please describe.
Prevent blocking assigning a public IPv4 address to an instance
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-network-iface-embedded.html#aws-properties-ec2-network-iface-embedded-associatepubip

    {
      "Effect": "Deny",
      "Action": [
        "ec2:RunInstances"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:network-interface/*"
      ],
      "Condition": {
        "Bool": {
          "ec2:AssociatePublicIpAddress": "true"
        }
      }
    }

Expected Outcome - Describe the solution you'd like
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Affected AWS resource
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Impact
High: The issue makes a service level improvement which affects all users of AWS
Medium: Single feature which affects a single functionality which is optionally enabled in the AWS service
Low: Niche use case which is particularly affecting the AWS resources if it is configured in a certain way

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