[flake8-bugbear] Stabilize batched-without-explicit-strict (B911) (#16655)

Summary
--

Stabilizes B911. Tests and docs looked good.

Test Plan
--

0 issues or PRs, open or closed

Author: ntBre

crates/ruff_linter/src/codes.rs

@@ -362,7 +362,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (Flake8Bugbear, "904") => (RuleGroup::Stable, rules::flake8_bugbear::rules::RaiseWithoutFromInsideExcept),
         (Flake8Bugbear, "905") => (RuleGroup::Stable, rules::flake8_bugbear::rules::ZipWithoutExplicitStrict),
         (Flake8Bugbear, "909") => (RuleGroup::Preview, rules::flake8_bugbear::rules::LoopIteratorMutation),
-        (Flake8Bugbear, "911") => (RuleGroup::Preview, rules::flake8_bugbear::rules::BatchedWithoutExplicitStrict),
+        (Flake8Bugbear, "911") => (RuleGroup::Stable, rules::flake8_bugbear::rules::BatchedWithoutExplicitStrict),
 
         // flake8-blind-except
         (Flake8BlindExcept, "001") => (RuleGroup::Stable, rules::flake8_blind_except::rules::BlindExcept),