add update or replace to sim and fix update or replace ordering

[Pavan-Nambi]

NOTE: this do not qualify for turso challenge, this is a general simulator improvement. - update or replace is added after 0.4.4

In update or replace , we handled the rowid conflict too late; we updated indexes first, then deleted the conflicting row. If the new row and the conflicting row shared
indexed values, this could leave stale entries in secondary indexes (and NotExists could also move the table cursor onto the wrong row). Fix: delete the conflicting row (and its index
entries) before the index update loop, then re-seek back to the row being updated.

 cargo run --bin limbo_sim -- --maximum-tests 1000 --seed 4939548460769627338
 
 Error: failed with error: 'InternalError("Integrity Check Failed: row 1 missing from index idx_approachable_klassen_827_gregario_320403\nwrong # of entries in index idx_approachable_klassen_827_gregario_320403")'

[Pavan-Nambi]

if any of u think, this pollutes code-qualit/skill.md i am ok with removing it, personally i only added this cuz i remember seeing similar issue in check constraints pr - see #5040 (comment) and it's easy to miss. i think it's nice to have this.

[codspeed-hq]

Merging this PR will not alter performance

✅ 279 untouched benchmarks
⏩ 105 skipped benchmarks¹

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_{Comparing Pavan-Nambi:sim_update (b5c5122) with main (5291b2b)}

Footnotes

1. 105 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[turso-bot]

Please review @PThorpe92