Update SQLite to version 3.45.2

[JoshuaWise]

This is an automated pull request, updating SQLite to version 3.45.2.

[mceachen]

The failing test:

	it('should work with an empty database', async function () {
		this.db.close();
		this.db = new Database();
		const buffer = this.db.serialize();
		expect(buffer).to.be.an.instanceof(Buffer);
                writeFileSync("/tmp/empty.db", buffer);
		expect(buffer.length).to.equal(0);
		this.db.close();
		this.db = new Database(buffer);
		expect(this.db.serialize().length).to.equal(0);
	});

The new behavior of SQLite is to actually emit a valid SQLite database, complete with a proper magick header:

$ hexdump -c /tmp/empty.db 
0000000   S   Q   L   i   t   e       f   o   r   m   a   t       3  \0
0000010 020  \0 001 001  \0   @          \0  \0  \0  \0  \0  \0  \0 001
0000020  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
*
0000060  \0  \0  \0  \0  \r  \0  \0  \0  \0 020  \0  \0  \0  \0  \0  \0
0000070  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
*

I propose the assertion on empty databases should be modified to validate that there aren't any tables, and the buffer is less than or equal to 4096 bytes.

Note that this change isn't mentioned in the SQLite release notes: https://sqlite.org/releaselog/3_45_2.html

[mceachen]

:+1