### Summary

While templating a JSON file where the JSON was created as part of a template (without using `to_json`) and where a macro was used to template some repeated parts, we found out that the generated JSON file was invalid JSON after switching from ansible-core 2.12 to ansible-core 2.13.

The problem seems to be that if the output of a macro looks like something that could be a Pyhon `repr()` result, it is converted back to Python datastructures.

### Issue Type

Bug Report

### Component Name

templar

### Ansible Version

```console
2.13.0
devel branch
```


### Configuration

```console
default
```


### OS / Environment

Linux

### Steps to Reproduce

```.bash
ansible localhost -m debug -a "msg='{% macro foo() %}{ "'"'"foo"'"'": "'"'"bar"'"'" }{% endmacro %}Test: {{ foo() }}'"
```
Or as a task:
```.yaml
- hosts: localhost
  tasks:
  - debug:
      msg: >-
        {% macro foo() %}{ "foo": "bar" }{% endmacro %}Test: {{ foo() }}
```


### Expected Results

```
"Test: {\"foo\": \"bar\"}"
```

### Actual Results

```console
"Test: {'foo': 'bar'}"
```
(This has `'` instead of `"`, so this isn't valid JSON.)
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
'''
    The main class for templating, with the main entry-point of template().
    '''
    def __init__(self, loader, shared_loader_obj=None, variables=None):
        
        
        self._loader = loader
        self._available_variables = {} if variables is None else variables
        self._cached_result = {}
        self._fail_on_undefined_errors = C.DEFAULT_UNDEFINED_VAR_BEHAVIOR
        environment_class = AnsibleNativeEnvironment if C.DEFAULT_JINJA2_NATIVE else AnsibleEnvironment
        self.environment = environment_class(
            extensions=self._get_extensions(),
            loader=FileSystemLoader(loader.get_basedir() if loader else '.'),
        )
        self.environment.template_class.environment_class = environment_class
        
        self.environment.globals['dict'] = dict
        
        self.environment.globals['lookup'] = self._lookup
        self.environment.globals['query'] = self.environment.globals['q'] = self._query_lookup
        self.environment.globals['now'] = self._now_datetime
        self.environment.globals['undef'] = self._make_undefined
        
        self.cur_context = None
        
        self.SINGLE_VAR = re.compile(r"^%s\s*(\w*)\s*%s$" % (self.environment.variable_start_string, self.environment.variable_end_string))
        self.jinja2_native = C.DEFAULT_JINJA2_NATIVE
    def copy_with_new_env(self, environment_class=AnsibleEnvironment, **kwargs):