Update git submodules
- Update vendor from branch 'REL1_40' to 428677b0f8d0f59b07eb753d5926fec155e9c7d0
- Upgrading wikimedia/parsoid (v0.17.0-a21 => v0.17.0)
Change-Id: I527080ba00bd32411cc86fbce83690d2b94be246
- Upgrading wikimedia/parsoid (v0.17.0-a21 => v0.17.0)