minor symfony#41614 [Mime] Fix CSV file mime type guess test for PHP 8.1 (alexandre-daubois)

This PR was merged into the 4.4 branch.

Discussion
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[Mime] Fix CSV file mime type guess test for PHP 8.1

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | Part of symfony#41552 <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT
| Doc PR        | N/A

I had the same result as `@derrabus` on my computer: `application/csv`. The CI returns `text/csv`. These two seem possible, although `text/csv` is described in [RFC 7111](https://datatracker.ietf.org/doc/html/rfc7111#page-3).

(Oops little typo in title, thanks Alexander for the fix 🙏 )

Commits
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117cb8f [DependencyInjection] Fix CSV file mime type guess test for PHP 8.1

Author: nicolas-grekas

src/Symfony/Component/HttpFoundation/Tests/File/MimeType/MimeTypeTest.php

@@ -65,8 +65,7 @@ public function testGuessFileWithUnknownExtension()
 
     public function testGuessWithDuplicatedFileType()
     {
-        $type = MimeTypeGuesser::getInstance()->guess(__DIR__.'/../Fixtures/test.docx');
-        $this->assertTrue(\in_array($type, ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip'], true));
+        $this->assertContains(MimeTypeGuesser::getInstance()->guess(__DIR__.'/../Fixtures/test.docx'), ['application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip']);
     }
 
     public function testGuessWithIncorrectPath()

src/Symfony/Component/Mime/Tests/MimeTypesTest.php

@@ -75,7 +75,12 @@ public function testCustomMimeTypes()
     }
 
     /**
-     * PHP 8 detects .csv files as "application/csv" while PHP 7 returns "text/plain".
+     * PHP 8 detects .csv files as "application/csv" (or "text/csv", depending
+     * on your system) while PHP 7 returns "text/plain".
+     *
+     * "text/csv" is described by RFC 7111.
+     *
+     * @see https://datatracker.ietf.org/doc/html/rfc7111
      *
      * @requires PHP 8
      */
@@ -84,7 +89,7 @@ public function testCsvExtension()
         $mt = new MimeTypes();
 
         $mime = $mt->guessMimeType(__DIR__.'/Fixtures/mimetypes/abc.csv');
-        $this->assertSame('application/csv', $mime);
+        $this->assertContains($mime, ['application/csv', 'text/csv']);
         $this->assertSame(['csv'], $mt->getExtensions($mime));
     }
 }