[`flake8-bugbear`] Mark fix unsafe when it would remove comments (`B033`) (#22632)
The B033 erroneously removes comments in safe fix.
By running
```console
$ cargo run -p ruff -- check --select B033 - << 'EOF'
{
1,
# comment
1
}
EOF
```
We get:
# Before
```console
B033 [*] Sets should not contain duplicate item `1`
--> -:4:3
|
2 | 1,
3 | # comment
4 | 1
| ^
5 | }
|
help: Remove duplicate item
Found 1 error.
[*] 1 fixable with the `--fix` option.
```
# After
```console
B033 Sets should not contain duplicate item `1`
--> -:4:3
|
2 | 1,
3 | # comment
4 | 1
| ^
5 | }
|
help: Remove duplicate item
Found 1 error.
No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).
```
Closes #22629