v4.2.2

Features

• release 4.2.1 (#173) #173 (Steven)
• update iOS DriveKit modules to 3.2.2 #174 (Steven)

Chores

• update legacy demo Podfile.lock (run pod install) #173 (Steven)
• start to prepare release 4.2.2 #174 (Steven)

Commits

• 8435ba7: v4.2.2 (Steven) #174