Update dependency typescript to v3.9.5 (#3297)
Update dependency typescript to v3.9.5 (#3297)

* Update dependency typescript to v3.9.5

* Create brave-lies-crash.md

* Update brave-lies-crash.md

Co-authored-by: Renovate Bot <c71e7261d37a4f6ae4cfb0cbd79081310a237e67@renovateapp.com>
Co-authored-by: Feiyang <31cb6ff0870f5420716897b8c5e862bef93173d3@google.com>
FirebaseExtended/rxfire,FirebaseExtended/rxfire,FirebaseExtended/rxfire