fix ez-vcard on api <26

Change-Id: I3a0c5f92f0067e71596a0e0ab021453da82fa1c1

jami-android/libjamiclient/src/main/kotlin/net/jami/utils/VCardUtils.kt

@@ -31,10 +31,7 @@ import ezvcard.property.Uid
 import io.reactivex.rxjava3.core.Single
 import io.reactivex.rxjava3.schedulers.Schedulers
 import net.jami.utils.FileUtils.moveFile
-import java.io.File
-import java.io.IOException
-import java.io.StringWriter
-import kotlin.io.path.Path
+import java.io.*
 
 object VCardUtils {
     val TAG = VCardUtils::class.simpleName!!
@@ -123,7 +120,7 @@ object VCardUtils {
         }
         val file = File(path, filename)
         try {
-            VCardWriter(Path(file.absolutePath), VCardVersion.V2_1).use { writer ->
+            VCardWriter(BufferedOutputStream(FileOutputStream((file))), VCardVersion.V2_1).use { writer ->
                 writer.vObjectWriter.foldedLineWriter.lineLength = null
                 writer.write(vcard)
             }
@@ -164,7 +161,7 @@ object VCardUtils {
             Log.w(TAG, "vcardPath too big: " + path.length() / 1024 + " kB")
             return null
         }
-        return Ezvcard.parse(Path(path.absolutePath)).first()
+        return Ezvcard.parse(BufferedInputStream(FileInputStream((path.absolutePath)))).first()
     }
 
     fun vcardToString(vcard: VCard?): String? {