Media: Fix HEIF mime type assertion in test for PHP 8.5.

In PHP 8.5, the test image's mime type is now detected as `image/heif`, not `image/heic`.

Props swissspidy, adamsilverstein.
Fixes #64050.

git-svn-id: https://develop.svn.wordpress.org/trunk@60810 602fd350-edb4-49c9-b593-d223f7449a82

Author: swissspidy

tests/phpunit/tests/functions.php

@@ -1284,7 +1284,11 @@ public function test_wp_get_image_mime( $file, $expected ) {
 			$this->markTestSkipped( 'The exif PHP extension is not loaded.' );
 		}
 
-		$this->assertSame( $expected, wp_get_image_mime( $file ) );
+		if ( is_array( $expected ) ) {
+			$this->assertContains( wp_get_image_mime( $file ), $expected );
+		} else {
+			$this->assertSame( $expected, wp_get_image_mime( $file ) );
+		}
 	}
 
 	/**
@@ -1360,7 +1364,8 @@ public function data_wp_get_image_mime() {
 			// HEIC.
 			array(
 				DIR_TESTDATA . '/images/test-image.heic',
-				'image/heic',
+				// In PHP 8.5, it returns 'image/heif'. Before that, it returns 'image/heic'.
+				array( 'image/heic', 'image/heif' ),
 			),
 		);