Fix sqlite compilation

[cycraig]

Description

Small change to fix compilation errors on the 0.7-dev branch from merging #1946, #1960 and #2094 (nothing was wrong with any of those PRs, just a merging thing).

Motivation

Compilation errors blocking further work. Figured it would be better to fix them in a separate PR.

Error 1:

error: failed to select a version for `libsqlite3-sys`.
    ... required by package `sqlx v0.6.2 (<...>\sqlx)`
    ... which satisfies path dependency `sqlx` (locked to 0.6.2) of package `files v0.1.0 (<...>\sqlx\examples\postgres\files)`
versions that meet the requirements `^0.24` are: 0.24.2, 0.24.1, 0.24.0                                

Error 2:

   Compiling sqlx-core v0.6.2 (<...>\sqlx\sqlx-core)
error[E0532]: expected tuple struct or tuple variant, found struct variant `CursorDataType::Normal`
   --> sqlx-core\src\sqlite\connection\explain.rs:363:17
    |
188 | /     Normal {
189 | |         cols: HashMap<i64, ColumnType>,
190 | |         is_empty: Option<bool>,
191 | |     },
    | |_____- `CursorDataType::Normal` defined here
...
363 |                   CursorDataType::Normal(hm) => {
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
help: use struct pattern syntax instead
    |
363 |                 CursorDataType::Normal { cols, is_empty } => {
    |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: consider importing this tuple variant instead