<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### 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 -->

slackware_facts = {}
        if 'Slackware' not in data:
            return False, slackware_facts  
        slackware_facts['distribution'] = name
        version = re.findall(r'\w+[.]\w+', data)
        if version:
            slackware_facts['distribution_version'] = version[0]
        return True, slackware_facts
    def parse_distribution_file_Amazon(self, name, data, path, collected_facts):
        amazon_facts = {}
        if 'Amazon' not in data:
            return False, amazon_facts
        amazon_facts['distribution'] = 'Amazon'
        version = [n for n in data.split() if n.isdigit()]
        version = version[0] if version else 'NA'
        amazon_facts['distribution_version'] = version
        return True, amazon_facts
    def parse_distribution_file_OpenWrt(self, name, data, path, collected_facts):
        openwrt_facts = {}
        if 'OpenWrt' not in data:
            return False, openwrt_facts  
        openwrt_facts['distribution'] = name
        version = re.search('DISTRIB_RELEASE="(.*)"', data)
        if version:
            openwrt_facts['distribution_version'] = version.groups()[0]
        release = re.search('DISTRIB_CODENAME="(.*)"', data)
        if release:
            openwrt_facts['distribution_release'] = release.groups()[0]
        return True, openwrt_facts
    def parse_distribution_file_Alpine(self, name, data, path, collected_facts):