Update version to v2.2.0 (#181)

Here's the changelog:

-   The plugin now requires PHP 7.2 or newer.
-   The plugin now supports PHP 8.4.
- The plugin now requires only PDO and PDO SQLite. The SQLite3 PHP
extension is no longer required.
- Added support for information schema queries with `WHERE`, `ORDER BY`,
and `AS`.
- Fixed error when a column name equals a keyword name (e.g., a column
named `timestamp`).
-   New SQLite driver for advanced MySQL compatibility (experimental):
- The new driver can be enabled using `define( 'WP_SQLITE_AST_DRIVER',
true );`.
    -   Advanced support of the MySQL syntax.
    -   Advanced support for subqueries.
    -   Advanced support for `UNION` and `UNION ALL` operators.
    -   Advanced support for `SHOW` and `DESCRIBE` statements.
    -   Advanced support for `INFORMATION_SCHEMA` tables.
    -   Advanced support for `TEMPORARY` tables.
- Advanced support for table administration statements
(`TRUNCATE`, `ANALYZE`, `CHECK` `OPTIMIZE`, `REPAIR`).
- Support for `STRICT_TRANS_TABLES` and `STRICT_ALL_TABLES` SQL modes.
    -   Support for `NO_BACKSLASH_ESCAPES` SQL mode.
- Support for `USE <database>` statement for the main database
and `INFORMATION_SCHEMA`.
    -   Automatic migration of databases created with the legacy driver.
- The driver is tested against the WordPress PHPUnit test suite, passing
most of the tests.
    -   The driver requires SQLite 3.37.0 or newer.

Author: JanJakes

load.php

@@ -3,7 +3,7 @@
  * Plugin Name: SQLite Database Integration
  * Description: SQLite database driver drop-in.
  * Author: The WordPress Team
- * Version: 2.1.17-alpha
+ * Version: 2.2.0
  * Requires PHP: 7.2
  * Textdomain: sqlite-database-integration
  *

readme.txt

@@ -4,7 +4,7 @@ Contributors:      wordpressdotorg, aristath, janjakes, zieladam, berislav.grgic
 Requires at least: 6.4
 Tested up to:      6.6.1
 Requires PHP:      7.2
-Stable tag:        2.1.17-alpha
+Stable tag:        2.2.0
 License:           GPLv2 or later
 License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 Tags:              performance, database

version.php

@@ -5,4 +5,4 @@
  *
  * This constant needs to be updated on plugin release!
  */
-define( 'SQLITE_DRIVER_VERSION', '2.1.17-alpha' );
+define( 'SQLITE_DRIVER_VERSION', '2.2.0' );