Upgrade embedded SQLite library

[rmanne]

It seems like there's a bug when building the SQLite library on systems using gcc10.

Related links:

• https://sqlite.org/forum/forumpost/845dd0be91?t=h
• https://www.sqlite.org/src/info/04e1edd8e5821a37

[fgaz]

+1! Also for new features such as https://www.sqlite.org/stricttables.html

[jchia]

I have updated to 3.38.5. Does the gcc10 problem still repro?