Add TinyGo SQLite to the API guide

[adamreese]

TinyGo SQLite will be released in Spin 1.5

[vdice]

Suggested change

	A convince function `sqlite.Open()` is provided to create a database connection. Because the `http.Handle` function is inside the `init()` function the Spin SQLite driver cannot be initialized the same way as other drivers using [sql.Open](https://pkg.go.dev/database/sql#Open).
	A convenience function `sqlite.Open()` is provided to create a database connection. Because the `http.Handle` function is inside the `init()` function the Spin SQLite driver cannot be initialized the same way as other drivers using [sql.Open](https://pkg.go.dev/database/sql#Open).

Almost had me convinced

[tpmccallum]

LGTM

[vdice]

@adamreese I just realized we also have a language support guide here in this repo (in addition to the README.md in fermyon/spin); would you mind updating this line as well? https://github.com/fermyon/developer/blob/main/content/spin/language-support-overview.md?plain=1#L88