### 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
return is_possibly_template(data, self.environment)
    def _convert_bare_variable(self, variable):
        '''
        Wraps a bare string, which may have an attribute portion (ie. foo.bar)
        in jinja2 variable braces so that it is evaluated properly.
        '''
        if isinstance(variable, string_types):
            contains_filters = "|" in variable
            first_part = variable.split("|")[0].split(".")[0].split("[")[0]
            if (contains_filters or first_part in self._available_variables) and self.environment.variable_start_string not in variable:
                return "%s%s%s" % (self.environment.variable_start_string, variable, self.environment.variable_end_string)
        
        
        return variable
    def _fail_lookup(self, name, *args, **kwargs):
        raise AnsibleError("The lookup `%s` was found, however lookups were disabled from templating" % name)
    def _now_datetime(self, utc=False, fmt=None):
        '''jinja2 global function to return current datetime, potentially formatted via strftime'''
        if utc:
            now = datetime.datetime.utcnow()
        else:
            now = datetime.datetime.now()
        if fmt:
            return now.strftime(fmt)
        return now
    def _query_lookup(self, name, *args, **kwargs):