v1.44.0

Changelog

• Remove extra if for project validation #709
• Fix integration test on Windows #710
• All project api key regex are case insensitive #715
• Fix handling multiple api keys #717
• All user-input regex are case insensitive #716
• Use internal config when writing backoff #719
• Extend support for all user input regex patterns #720
• Test syncing two offline heartbeats with different api keys #721