MFC r333352 & r342183:

r333352: Update private sqlite from sqlite3-3.20.0 to sqlite3-3.23.1
r342183: Update sqlite3-3.23.1 --> sqlite3-3.26.0 (3260000)

PR: 234113
Security: https://blade.tencent.com/magellan/index_en.html
No known CVE was apparently registered.

MFV r342175:

Update sqlite3-3.23.1 --> sqlite3-3.26.0 (3260000)

MFC after: 3 days
Security: https://blade.tencent.com/magellan/index_en.html
No known CVE was apparently registered.

Import sqlite3-3.26.0 (3260000)

Obtained from: https://www.sqlite.org/2018/sqlite-autoconf-3260000.tar.gz