Update to Muon 2.56.9

Auditors: @bbondy, @bridiver

Author: bsclifton

.npmrc

@@ -1,5 +1,5 @@
 runtime = electron
-target = 2.56.8
+target = 2.56.9
 target_arch = x64
-brave_electron_version = 2.56.8
+brave_electron_version = 2.56.9
 disturl = https://brave-laptop-binaries.s3.amazonaws.com/atom-shell/dist

tools/cibuild.py

@@ -5,7 +5,7 @@
 import sys
 import os.path
 
-MUON_VERSION = '2.56.8'
+MUON_VERSION = '2.56.9'
 SOURCE_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
 TARGET_ARCH= os.environ['TARGET_ARCH'] if os.environ.has_key('TARGET_ARCH') else 'x64'
 os.environ['npm_config_arch'] = TARGET_ARCH