Update dependency com_googlesource_code_re2
Update dependency com_googlesource_code_re2

To version 2019-12-01.

PiperOrigin-RevId: 286031741
Change-Id: I4f3aa737985baf33c72e0b79600e6ddb1fb196ba

google/asylo,google/asylo,google/asylo,google/asylo,google/asylo,google/asylo