[wpmlbridge-296] Enable automatic PHPStan analysis.

https://onthegosystems.myjetbrains.com/youtrack/issue/wpmlbridge-296

.github/workflows/php.yml

@@ -1,5 +1,5 @@
-name: OTGS PHP UNIT
-run-name: PHP Unit at ${{ github.ref_name }}
+name: OTGS PHP TEST
+run-name: PHP TEST at ${{ github.ref_name }}
 
 on: [push, pull_request]
 
@@ -20,5 +20,8 @@ jobs:
       - name: Install dependencies
         run: composer install --prefer-dist --no-progress --no-suggest
 
-      - name: Run test suite
+      - name: Run unit test suite
         run: ./vendor/bin/phpunit
+
+      - name: Run static test suite
+        run: ./vendor/bin/phpstan

tests/phpstan/stubs/elasticpress.stub

@@ -15,6 +15,7 @@ namespace ElasticPress {
 	 	 * @param array<string,mixed> $assocArgs
 	 	 */
 		function index( $args, $assoc_args ) {}
+
 	}
 
 	class Feature {
@@ -150,7 +151,7 @@ namespace ElasticPress {
 
 	class Indexable {
 
-			/** @var SyncManager */
+		/** @var SyncManager */
 		public $sync_manager;
 
 		/**
@@ -196,14 +197,14 @@ namespace ElasticPress {
 		 * @param array $args Arguments.
 	 	 */
 		public function full_index( $args ) {}
+
 	}
+
 }
 
 namespace ElasticPress\StatusReport {
 
-	class Report {
-
-	}
+	class Report {}
 
 	class Indices {
 

tests/phpstan/stubs/wp-cli.stub

@@ -1,6 +1,7 @@
 <?php
 
 namespace {
+
 	class WP_CLI {
 
 		/**
@@ -25,6 +26,7 @@ namespace {
 		public static function add_command( string $name, mixed $callable, array $args = [] ): bool {}
 
 	}
+
 }
 
 namespace WP_CLI\Utils {