RUF037 fix should add spaces between tokens

[dscorbett]

Summary

The fix for unnecessary-empty-iterable-within-deque-call (RUF037) can introduce a syntax error when deque is parenthesized and preceded by a keyword without intervening white space.

$ cat >ruf037.py <<'# EOF'
from collections import deque
0 or(deque)([])
# EOF

$ ruff --isolated check ruf037.py --select RUF037 --preview --diff 2>&1 | grep error:
error: Fix introduced a syntax error. Reverting all changes.

Version

ruff 0.11.13 (5faf72a 2025-06-05)