fix: use zwave-js guessFirmwareFileFormat function (#498)

lib/ZwaveClient.js

@@ -8,6 +8,7 @@ const {
   NodeStatus,
   InterviewStage,
   extractFirmware,
+  guessFirmwareFileFormat,
   CommandClass,
   libVersion
 } = require('zwave-js')
@@ -2209,25 +2210,7 @@ ZwaveClient.prototype.refreshInfo = async function (nodeId) {
 
   throw Error('Driver is closed')
 }
-/**
- * Try to guess the firmware format
- *
- * @param {string} filename
- * @param {Buffer} firmware
- * @returns {import('zwave-js').FirmwareFileFormat} The firmware format
- */
-function guessFirmwareFormat (filename, firmware) {
-  if (
-    (filename.endsWith('.exe') || filename.endsWith('.ex_')) &&
-    firmware.includes(Buffer.from('Aeon Labs', 'utf8'))
-  ) {
-    return 'aeotec'
-  } else if (/\.(hex|ota|otz)$/.test(filename)) {
-    return filename.slice(-3)
-  } else {
-    throw new Error('could not detect firmware format')
-  }
-}
+
 /**
  * Start a frimware uddate
  *
@@ -2254,7 +2237,7 @@ ZwaveClient.prototype.beginFirmwareUpdate = async function (
 
     let actualFirmware
     try {
-      const format = guessFirmwareFormat(fileName, data)
+      const format = guessFirmwareFileFormat(fileName, data)
       actualFirmware = extractFirmware(data, format)
     } catch (e) {
       throw Error('Unable to extract firmware from file: ' + e.message)