Update dependency io_bazel_rules_go
Update dependency io_bazel_rules_go

To version v0.20.3.

PiperOrigin-RevId: 286225209
Change-Id: Iaa725f098c849a9b98a4a1191beadb9fb68f2a93

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