change detectMimeTypeFromBuffer to detectMimeType#26

brecht-vermeersch merged 2 commits intoAzure-OSS:mainAzure-OSS/azure-storage-php-adapter-flysystem:mainfrom

DerkNh1816:fix-mime-type-detection-for-non-buffer-contentDerkNh1816/azure-storage-php-adapter-flysystem:fix-mime-type-detection-for-non-buffer-contentCopy head branch name to clipboard