sqlite: Update README.chromium version.

Sqlite is using v3.32.1 now.

Bug: 1087629
Change-Id: I504f751e8c361e081a8a969da0be09c138ab71c4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2261147
Auto-Submit: Darwin Huang <huangdarwin@chromium.org>
Reviewed-by: Chris Mumford <cmumford@google.com>
Commit-Queue: Darwin Huang <huangdarwin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#781545}

third_party/sqlite/README.chromium

 Name: sqlite
 URL: https://sqlite.org/
-Version: 3.31.1
-CPEPrefix: cpe:/a:sqlite:sqlite:3.31.1
+Version: 3.31.2
+CPEPrefix: cpe:/a:sqlite:sqlite:3.31.2
 Included In Release: Yes
 Security Critical: Yes
 License: Public domain