fixup! Support mutually exclusive branches for B031 (#3844)

[dhruvmanila]

I'm not sure why I added that condition, but nevertheless here's the fixup for that 🤔

[github-actions]

PR Check Results

Ecosystem

✅ ecosystem check detected no changes.

Benchmark

Linux

group                                      main                                   pr
-----                                      ----                                   --
linter/all-rules/large/dataset.py          1.01     14.1±0.04ms     2.9 MB/sec    1.00     14.0±0.04ms     2.9 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.00      3.5±0.01ms     4.7 MB/sec    1.00      3.5±0.01ms     4.7 MB/sec
linter/all-rules/numpy/globals.py          1.00    455.2±1.46µs     6.5 MB/sec    1.00    453.7±0.91µs     6.5 MB/sec
linter/all-rules/pydantic/types.py         1.01      6.1±0.12ms     4.2 MB/sec    1.00      6.0±0.03ms     4.2 MB/sec
linter/default-rules/large/dataset.py      1.02      7.3±0.08ms     5.6 MB/sec    1.00      7.1±0.02ms     5.7 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00   1615.6±1.50µs    10.3 MB/sec    1.00  1615.9±10.30µs    10.3 MB/sec
linter/default-rules/numpy/globals.py      1.00    178.4±0.40µs    16.5 MB/sec    1.01    179.9±0.63µs    16.4 MB/sec
linter/default-rules/pydantic/types.py     1.01      3.3±0.00ms     7.7 MB/sec    1.00      3.3±0.01ms     7.7 MB/sec

Windows

group                                      main                                   pr
-----                                      ----                                   --
linter/all-rules/large/dataset.py          1.02     17.3±0.36ms     2.4 MB/sec    1.00     16.9±0.23ms     2.4 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.02      4.5±0.16ms     3.7 MB/sec    1.00      4.4±0.09ms     3.8 MB/sec
linter/all-rules/numpy/globals.py          1.01   515.8±16.09µs     5.7 MB/sec    1.00   511.5±23.28µs     5.8 MB/sec
linter/all-rules/pydantic/types.py         1.04      7.4±0.18ms     3.4 MB/sec    1.00      7.2±0.14ms     3.6 MB/sec
linter/default-rules/large/dataset.py      1.00      8.7±0.11ms     4.7 MB/sec    1.01      8.7±0.19ms     4.7 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00  1879.8±30.44µs     8.9 MB/sec    1.00  1888.7±35.41µs     8.8 MB/sec
linter/default-rules/numpy/globals.py      1.03    206.9±8.39µs    14.3 MB/sec    1.00    200.0±8.16µs    14.8 MB/sec
linter/default-rules/pydantic/types.py     1.00      3.9±0.05ms     6.5 MB/sec    1.01      4.0±0.08ms     6.4 MB/sec