### 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
val = super(AnsibleContext, self).resolve_or_missing(key)
        self._update_unsafe(val)
        return val
    def get_all(self):
        """Return the complete context as a dict including the exported
        variables. For optimizations reasons this might not return an
        actual copy so be careful with using it.
        This is to prevent from running ``AnsibleJ2Vars`` through dict():
            ``dict(self.parent, **self.vars)``
        In Ansible this means that ALL variables would be templated in the
        process of re-creating the parent because ``AnsibleJ2Vars`` templates
        each variable in its ``__getitem__`` method. Instead we re-create the
        parent via ``AnsibleJ2Vars.add_locals`` that creates a new
        ``AnsibleJ2Vars`` copy without templating each variable.
        This will prevent unnecessarily templating unused variables in cases
        like setting a local variable and passing it to {% include %}
        in a template.
        Also see ``AnsibleJ2Template``and
        https://github.com/pallets/jinja/commit/d67f0fd4cc2a4af08f51f4466150d49da7798729
        """
        if not self.vars:
            return self.parent
        if not self.parent:
            return self.vars
        if isinstance(self.parent, AnsibleJ2Vars):
            return self.parent.add_locals(self.vars)
        else:
            
            return dict(self.parent, **self.vars)
class JinjaPluginIntercept(MutableMapping):