<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
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##### SUMMARY
<!--- Explain the problem briefly below -->

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
Setup module and facts about de Operating System is detecting ansible_os_family as "Pop!_OS".
This distribution is based on Ubuntu, so it should be "Debian" the desired result

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```
ansible 2.9.6
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/moucho/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```
default configuration
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
Pop!_OS 20.04 LTS

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
ansible localhost -m setup

<!--- Paste example playbooks or commands between quotes below -->
<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
ansible_os_family: "Debian"

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
ansible_os_family: "Pop!_OS"
<!--- Paste verbatim command output between quotes -->

'os_release_info': {},
            'lsb_release_info': {},
        },
        'result': {
            'distribution': 'Cumulus Linux',
            'distribution_major_version': '2',
            'distribution_release': '2.5.4-6dc6e80-201510091936-build',
            'os_family': 'Debian',
            'distribution_version': '2.5.4',
        }
    },
    {
        "platform.dist": [
            "linuxmint",
            "18.2",
            "sonya"
        ],
        "input": {
            "/etc/os-release": (
                'NAME="Linux Mint"\nVERSION="18.2 (Sonya)"\nID=linuxmint\nID_LIKE=ubuntu\nPRETTY_NAME="Linux Mint 18.2"\n'
                'VERSION_ID="18.2"\nHOME_URL="http://www.linuxmint.com/"\nSUPPORT_URL="http://forums.linuxmint.com/"\n'
                'BUG_REPORT_URL="http://bugs.launchpad.net/linuxmint/"\nVERSION_CODENAME=sonya\nUBUNTU_CODENAME=xenial\n'),
            "/usr/lib/os-release": (
                'NAME="Linux Mint"\nVERSION="18.2 (Sonya)"\nID=linuxmint\nID_LIKE=ubuntu\nPRETTY_NAME="Linux Mint 18.2"\n'
                'VERSION_ID="18.2"\nHOME_URL="http://www.linuxmint.com/"\nSUPPORT_URL="http://forums.linuxmint.com/"\n'
                'BUG_REPORT_URL="http://bugs.launchpad.net/linuxmint/"\nVERSION_CODENAME=sonya\nUBUNTU_CODENAME=xenial\n'),
            "/etc/lsb-release": "DISTRIB_ID=LinuxMint\nDISTRIB_RELEASE=18.2\nDISTRIB_CODENAME=sonya\nDISTRIB_DESCRIPTION=\"Linux Mint 18.2 Sonya\"\n"
        },
        "result": {
            "distribution_release": "sonya",