### Summary

 ansible [core 2.13.0.dev0] is giving wrong `discovered_interpreter_python`. Here is a comparison from same host for 2.12.1 and 2.13

```
[root@perfscale-jenkins-max-control-11-exec-controlplane-1-vsi ansible-tower-setup]# ansible --version
[WARNING]: You are running the development version of Ansible. You should only run Ansible from "devel" if you are modifying the Ansible engine, or trying out features under development. This is a rapidly
changing source of code and can become unstable at any point.
ansible [core 2.13.0.dev0]
  config file = /root/ansible-tower-setup/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.9/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.9.2 (default, Mar  5 2021, 01:49:45) [GCC 8.4.1 20200928 (Red Hat 8.4.1-1)]
  jinja version = 3.0.3
  libyaml = True
[root@perfscale-jenkins-max-control-11-exec-controlplane-1-vsi ansible-tower-setup]# ansible -i inventory.cluster automationcontroller -m setup | grep -i discovered_interpreter_python
[WARNING]: You are running the development version of Ansible. You should only
run Ansible from "devel" if you are modifying the Ansible engine, or trying out
features under development. This is a rapidly changing source of code and can
become unstable at any point.
[WARNING]: Platform linux on host xx.xx.xx.xx is using the discovered
Python interpreter at /usr/bin/python3.9, but future installation of another
Python interpreter could change the meaning of that path. See
https://docs.ansible.com/ansible-
core/devel/reference_appendices/interpreter_discovery.html for more
information.
        "discovered_interpreter_python": "/usr/bin/python3.9",
```

In 2.12.1

```
[root@perfscale-jenkins-max-control-11-exec-controlplane-1-vsi ansible-tower-setup]# ansible --version
ansible [core 2.12.1]
  config file = /root/ansible-tower-setup/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.8/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.8.6 (default, Jan 22 2021, 11:41:28) [GCC 8.4.1 20200928 (Red Hat 8.4.1-1)]
  jinja version = 2.10.3
  libyaml = True
[root@perfscale-jenkins-max-control-11-exec-controlplane-1-vsi ansible-tower-setup]# ansible -i inventory.cluster automationcontroller -m setup | grep -i discovered_interpreter_python
        "discovered_interpreter_python": "/usr/libexec/platform-python",
```

### Issue Type

Bug Report

### Component Name

setup

### Ansible Version

```console
$ ansible --version
ansible [core 2.13.0.dev0]
  config file = /root/ansible-tower-setup/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.9/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.9.2 (default, Mar  5 2021, 01:49:45) [GCC 8.4.1 20200928 (Red Hat 8.4.1-1)]
  jinja version = 3.0.3
  libyaml = True
```


### Configuration

```console
$ ansible-config dump --only-changed
```


### OS / Environment

RHEL 8.4

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```
Try to run the setup module and look for `discovered_interpreter_python`

```


### Expected Results
```console
"discovered_interpreter_python": "/usr/libexec/platform-python"
```
### Actual Results

```console
"discovered_interpreter_python": "/usr/bin/python3.9"
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
sunos_facts['distribution'] = data.split()[0]
            sunos_facts['distribution_version'] = data.split()[1]
            sunos_facts['distribution_release'] = ora_prefix + data
            sunos_facts['distribution_major_version'] = uname_r.split('.')[1].rstrip()
            return sunos_facts
        uname_v = get_uname(self.module, flags=['-v'])
        distribution_version = None
        if 'SmartOS' in data:
            sunos_facts['distribution'] = 'SmartOS'
            if _file_exists('/etc/product'):
                product_data = dict([l.split(': ', 1) for l in get_file_content('/etc/product').splitlines() if ': ' in l])
                if 'Image' in product_data:
                    distribution_version = product_data.get('Image').split()[-1]
        elif 'OpenIndiana' in data:
            sunos_facts['distribution'] = 'OpenIndiana'
        elif 'OmniOS' in data:
            sunos_facts['distribution'] = 'OmniOS'
            distribution_version = data.split()[-1]
        elif uname_v is not None and 'NexentaOS_' in uname_v:
            sunos_facts['distribution'] = 'Nexenta'
            distribution_version = data.split()[-1].lstrip('v')
        if sunos_facts.get('distribution', '') in ('SmartOS', 'OpenIndiana', 'OmniOS', 'Nexenta'):
            sunos_facts['distribution_release'] = data.strip()
            if distribution_version is not None:
                sunos_facts['distribution_version'] = distribution_version
            elif uname_v is not None:
                sunos_facts['distribution_version'] = uname_v.splitlines()[0].strip()
            return sunos_facts
        return sunos_facts
class DistributionFactCollector(BaseFactCollector):