Add missing phpstan extension installer

composer.json

@@ -28,6 +28,7 @@
 		"phpmd/phpmd": "^2.15.0",
 		"sirbrillig/phpcs-variable-analysis": "^2.11.19",
 		"szepeviktor/phpstan-wordpress": "^1.3.5",
+		"phpstan/extension-installer": "^1.4.3",
 		"wp-coding-standards/wpcs": "^3.1.0"
 	},
 	"archive": {
@@ -38,7 +39,8 @@
 	"config": {
 		"allow-plugins": {
 			"dealerdirect/phpcodesniffer-composer-installer": true,
-			"ergebnis/composer-normalize": true
+			"ergebnis/composer-normalize": true,
+			"phpstan/extension-installer": true
 		},
 		"optimize-autoloader": true
 	},

gp-format-csv.php

@@ -13,7 +13,7 @@
  * Plugin URI:        https://wordpress.org/plugins/gp-format-csv/
  * Description:       Adds the CSV format to GlotPress to export/import translations and originals.
  * Version:           1.0.2
- * Requires at least: 4.9
+ * Requires at least: 5.1
  * Tested up to:      6.6
  * Requires PHP:      7.4
  * Requires Plugins:  glotpress
@@ -139,7 +139,7 @@ function gp_format_csv_disabled_notice() {
 			// Show aditional update link if on WP version 5.1 or higher.
 			// Capability added in WP 5.1: https://core.trac.wordpress.org/ticket/44457.
 			// Introduced in WP 5.1: https://developer.wordpress.org/reference/functions/wp_get_update_php_url/.
-			if ( current_user_can( 'update_php' ) && version_compare( $GLOBALS['wp_version'], '5.1', '>=' ) ) {
+			if ( current_user_can( 'update_php' ) ) {
 				echo ' ' . sprintf(
 					wp_kses_post(
 						/* translators: %s: URL to Update PHP page. */

phpcs.xml.dist

@@ -38,7 +38,7 @@
 		-->
 	</rule>
 
-	<config name="minimum_supported_wp_version" value="4.9"/>
+	<config name="minimum_supported_wp_version" value="5.1"/>
 
 	<!--
 	To get the optimal benefits of using WPCS, we should add a couple of custom properties.

phpstan.neon.dist

@@ -1,5 +1,3 @@
-includes:
-	- vendor/szepeviktor/phpstan-wordpress/extension.neon
 parameters:
 	level: max
 	inferPrivatePropertyTypeFromConstructor: true