Merge branch '6.4' into 7.0

* 6.4:
  [Templating] Fix CI
  More short closures

Author: nicolas-grekas

Tests/Store/DoctrineDbalStoreTest.php

@@ -236,7 +236,7 @@ public function testCreatesTableOutsideTransaction()
     public function testConfigureSchemaDifferentDatabase()
     {
         $conn = $this->createMock(Connection::class);
-        $someFunction = function () { return false; };
+        $someFunction = fn () => false;
         $schema = new Schema();
 
         $dbalStore = new DoctrineDbalStore($conn);
@@ -247,7 +247,7 @@ public function testConfigureSchemaDifferentDatabase()
     public function testConfigureSchemaSameDatabase()
     {
         $conn = $this->createMock(Connection::class);
-        $someFunction = function () { return true; };
+        $someFunction = fn () => true;
         $schema = new Schema();
 
         $dbalStore = new DoctrineDbalStore($conn);
@@ -262,7 +262,7 @@ public function testConfigureSchemaTableExists()
         $schema->createTable('lock_keys');
 
         $dbalStore = new DoctrineDbalStore($conn);
-        $someFunction = function () { return true; };
+        $someFunction = fn () => true;
         $dbalStore->configureSchema($schema, $someFunction);
         $table = $schema->getTable('lock_keys');
         $this->assertEmpty($table->getColumns(), 'The table was not overwritten');