upgrade rusqlite@0.14

[hdhoang]

this helps with rust-lang/rust#49799. rusqlite 0.15 is a bit complicated, so I have stopped here.

I have the same test failure as before upgrading:

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#7: .ignore
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thread 'meta_tags' panicked at 'assertion failed: `(left == right)`
  left: `["done", "hidden", "archived", "paused"]`,
 right: `[]`', tests/tags.rs:46:5

[NQNStudios]

I wasn't aware anyone else was using Da Vinci Bot at all. 👍

Looking into the PR, and also fixing the test failure which I've noticed causes command shortcuts to fail sometimes.