[`ruff`] Suppress diagnostic for invalid f-strings before Python 3.12 (`RUF027`) (#23480)
## Summary
Fixes #23460.
Comments inside f-string interpolations (`#`) are only valid in Python
3.12+ ([PEP 701](https://peps.python.org/pep-0701/)). RUF027 was not
checking for this, so it could produce invalid f-strings when the
interpolation text contained a `#` and `target-version` was below 3.12.
## Fix
Extended the existing `target_version < PY312` backslash check to also
cover comments:
```rust
if target_version < PythonVersion::PY312
&& (interpolation_text.contains('\\') || interpolation_text.contains('#'))
{
return false;
}
```
## Test Plan
Added a test fixture with a comment inside an f-string interpolation
(`{x # }`). The existing `assert_diagnostics_diff!` test for PY311 vs
PY312 will capture the new suppression.
## Reproducer (from #23460)
```python
x = "!"
print("""{x # }
}""")
```
On `--target-version py311`, this should not trigger RUF027 since the
resulting f-string would contain a comment in the interpolation, which
is a syntax error before Python 3.12.
---------
Co-authored-by: User <user@example.com>
Co-authored-by: stakeswky <stakeswky@users.noreply.github.com>
ruff
728609a0 - [`ruff`] Suppress diagnostic for invalid f-strings before Python 3.12 (`RUF027`) (#23480)
