Apply fixes from StyleCI

Author: freekmurze

src/Drivers/ObjectDriver.php

@@ -2,13 +2,13 @@
 
 namespace Spatie\Snapshots\Drivers;
 
-use Spatie\Snapshots\Driver;
 use PHPUnit\Framework\Assert;
-use Symfony\Component\Yaml\Yaml;
-use Symfony\Component\Serializer\Serializer;
+use Spatie\Snapshots\Driver;
 use Symfony\Component\Serializer\Encoder\YamlEncoder;
-use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
 use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
+use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
+use Symfony\Component\Serializer\Serializer;
+use Symfony\Component\Yaml\Yaml;
 
 class ObjectDriver implements Driver
 {

src/Drivers/TextDriver.php

@@ -2,8 +2,8 @@
 
 namespace Spatie\Snapshots\Drivers;
 
-use Spatie\Snapshots\Driver;
 use PHPUnit\Framework\Assert;
+use Spatie\Snapshots\Driver;
 
 class TextDriver implements Driver
 {

tests/Unit/Drivers/ObjectDriverTest.php

@@ -36,7 +36,7 @@ public function it_can_serialize_an_associative_array()
     {
         $driver = new ObjectDriver();
 
-        $expected = <<<YAML
+        $expected = <<<'YAML'
 foo:
     bar: baz
 
@@ -50,7 +50,7 @@ public function it_can_serialize_an_indexed_array_without_keys()
     {
         $driver = new ObjectDriver();
 
-        $expected = <<<YAML
+        $expected = <<<'YAML'
 - foo
 - bar
 
@@ -64,7 +64,7 @@ public function it_can_serialize_a_simple_object()
     {
         $driver = new ObjectDriver();
 
-        $expected = <<<YAML
+        $expected = <<<'YAML'
 foo: bar
 
 YAML;
@@ -77,7 +77,7 @@ public function it_can_serialize_a_class_instance()
     {
         $driver = new ObjectDriver();
 
-        $expected = <<<YAML
+        $expected = <<<'YAML'
 name: 'My name'
 valid: true
 dateTime: '2020-01-01T15:00:00+01:00'