i18n(ja): unify "plan cache" katakana term (remove stray space) in sql-prepared-plan-cache.md#23297

yahonda wants to merge 1 commit into

pingcap:i18n-ja-release-8.5pingcap/docs:i18n-ja-release-8.5from

yahonda:i18n-ja-fix-plan-cache-spacingyahonda/docs:i18n-ja-fix-plan-cache-spacingCopy head branch name to clipboard