python:3.15 breaks Ansible provisioner #13726

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Overview of the Issue

We are running packer from a pre-built Docker image based on python:3. This started to break since the release of python:3.15 image (at the time of writing), with the following errors:

"failed preparing provisioner-block "ansible""

Reproduction Steps

1. Docker pull python:3 (or python 3.15)
2. Install ansible and other tools using pip
3. Attempt to run packer with ansible provisioning block

Packer version

Tried both 1.11.2 and 1.16.1.

Simplified Packer Template

build {
  name = "name"
  sources = [
    "source.amazon-ebs.ami_build"
  ]

  {...}

  provisioner "ansible" {
    playbook_file    = var.ansible_playbook_name
    ansible_env_vars = [
      "ANSIBLE_DIFF_ALWAYS=1",
      "ANSIBLE_FORCE_COLOR=1"
    ]
    extra_arguments = [
      "-v",
    ]
    user      = var.ssh_username
    use_proxy = false
  }

  {...}
}

Operating system and Environment details

Build agent is based on python:3 Docker image.