chore: sync upstream PR ionic-team#7513 from @jcesarmobile

Author: Capacitor+ Bot

android/capacitor/src/main/java/com/getcapacitor/plugin/util/CapacitorHttpUrlConnection.java

@@ -284,7 +284,6 @@ private void writeFormDataRequestBody(String contentType, JSArray entries) throw
                         os.writeBytes(twoHyphens + boundary + lineEnd);
                         os.writeBytes("Content-Disposition: form-data; name=\"" + key + "\"; filename=\"" + fileName + "\"" + lineEnd);
                         os.writeBytes("Content-Type: " + fileContentType + lineEnd);
-                        os.writeBytes("Content-Transfer-Encoding: binary" + lineEnd);
                         os.writeBytes(lineEnd);
 
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

ios/Capacitor/Capacitor/Plugins/CapacitorUrlRequest.swift

@@ -131,7 +131,6 @@ open class CapacitorUrlRequest: NSObject, URLSessionTaskDelegate {
                 data.append("--\(boundary)\r\n".data(using: .utf8)!)
                 data.append("Content-Disposition: form-data; name=\"\(key!)\"; filename=\"\(fileName!)\"\r\n".data(using: .utf8)!)
                 data.append("Content-Type: \(fileContentType!)\r\n".data(using: .utf8)!)
-                data.append("Content-Transfer-Encoding: binary\r\n".data(using: .utf8)!)
                 data.append("\r\n".data(using: .utf8)!)
 
                 data.append(Data(base64Encoded: value)!)