chore: bump version 4.12

Author: keshavbhatt

src/WhatsApp.pro

@@ -50,7 +50,7 @@ BUILD_TIMESTAMP="\\\"$$system(date -u +\""%Y-%m-%dT%H:%M:%SUTC\"")\\\""
 DEFINES += GIT_HASH=$$GIT_HASH GIT_BRANCH=$$GIT_BRANCH BUILD_TIMESTAMP=$$BUILD_TIMESTAMP
 
 # Set program version
-VERSION = 4.11
+VERSION = 4.12
 DEFINES += VERSIONSTR=\\\"$${VERSION}\\\"
 
 # You can also make your code fail to compile if you use deprecated APIs.