[stable20] Also check the path based mimetype for flow rule checks

[backportbot-nextcloud]

backport of #23096

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 33700: failure

mysql5.6-php7.2

Show full log

There were 2 warnings:

1) Test\Files\ViewTest::testRenameFailDeleteTargetKeepSource
Trying to configure method "writeStream" which cannot be configured because it does not exist, has not been specified, is final, or is static

2) Test\Files\ViewTest::testCopyFailDeleteTargetKeepSource
Trying to configure method "writeStream" which cannot be configured because it does not exist, has not been specified, is final, or is static

--

There was 1 failure:

1) OCA\ShareByMail\Tests\ShareByMailProviderTest::testAddShareToDB
Failed asserting that 0 is identical to 1.

/drone/src/apps/sharebymail/tests/ShareByMailProviderTest.php:553