Update bundled SQLcipher to v4.5.1 (equivalent to SQLite 3.37.2)

[thomcc]

There was another release of SQLcipher the other day: https://www.zetetic.net/blog/2022/03/03/sqlcipher-4.5.1-release

Kinda a bummer that it's not fully up to date (not quite up to date with SQLite version 3.38.0, a single version behind), but TBH I'm happy it got updated at all. (I had heard that the unstable codec api that SQLcipher is based on was removed from SQLite's internals, and became very worried, but even at the best of times, SQLcipher updates can be... sporadic).

Anyway I'll probably cut a libsqlite3-sys patch release shortly after landing this, since nobody should be broken by this update, and some people may be worried about the DB corruption it fixes (or may want some of the shiny stuff from the SQLite bump, like STRICT tables).

[codecov]

Codecov Report

Merging #1131 (ab3f30e) into master (8141b5e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1131   +/-   ##
=======================================
  Coverage   78.32%   78.32%           
=======================================
  Files          47       47           
  Lines        5809     5809           
=======================================
  Hits         4550     4550           
  Misses       1259     1259           

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