Svelte 5.55.6 release notes

fix: leave stale promises to wait for a later resolution, instead of rejecting (#18180)
fix: keep dependencies of $state.eager/pending (#18218)
fix: reapply context after transforming error during SSR (#18099)
fix: don't rebase just-created batches (#18117)
chore: allow null for pending in typings (#18201)
fix: flush eager effects in production (#18107)
fix: rethrow error of failed iterable after calling return() (#18169)
fix: account for proxified instance when updating bind:this (#18147)
fix: ensure scheduled batch is flushed if not obsolete (#18131)
fix: resolve stale deriveds with latest value (#18167)
chore: remove unnecessary increment_pending calls (#18183)
fix: correctly compile component member expressions for SSR (#18192)
fix: reset source.updated stack traces after flush (#18196)
fix: replacing async 'blocking' strategy with 'merging' (#18205)
fix: allow @debug tags to reference awaited variables (#18138)
fix: re-run fallback props if dependencies update (#18146)
fix: abort running obsolete async branches (#18118)
fix: ignore comments when reading CSS values (#18153)
fix: wrap Promise.all in save during SSR (#18178)
fix: ignore false-positive errors of $inspect dependencies (#18106)