Update module google.golang.org/grpc to v1.37.0

v1.37.0

Compare Source

API Changes

• balancer: Add UpdateAddresses() to balancer.ClientConn interface (#​4215)
  • NOTICE: balancer.SubConn.UpdateAddresses() is now deprecated and will be REMOVED in gRPC-Go 1.39

Behavior Changes

• balancer/base: keep address attributes for pickers (#​4253)
  • Special Thanks: @​longXboy

New Features

• xds: add support for csds (#​4226, #​4217, #​4243)
• admin: create admin package for conveniently registering standard admin services (#​4274)
• xds: add support for HTTP filters (gRFC A39) (#​4206, #​4221)
• xds: implement fault injection HTTP filter (A33) (#​4236)
• xds: enable timeout, circuit breaking, and fault injection by default (#​4286)
• xds: implement a priority based load balancer (#​4070)
• xds/creds: support all SAN matchers on client-side (#​4246)

Bug Fixes

• xds: add env var protection for client-side security (#​4247)
• circuit breaking: update picker inline when there's a counter update (#​4212)
• server: fail RPCs without POST HTTP method (#​4241)