gomod: update zoekt
Created by: keegancsmith
The main change is that the indexserver now communicates with Sourcegraph using IDs instead of names. We expect this to reduce network traffic and make better use of database indexes. IE reduced DB load.
- https://github.com/sourcegraph/zoekt/commit/4180212 indexserver: remove ListRepoNames and GetIndexOptionsName
- https://github.com/sourcegraph/zoekt/commit/3c16961 indexserver: allow public repos in sourcegraphFake
- https://github.com/sourcegraph/zoekt/commit/a416521 indexserver: include reason for update in log
- https://github.com/sourcegraph/zoekt/commit/68fe600 indexserver: use repo IDs instead of names
- https://github.com/sourcegraph/zoekt/commit/7cae0e4 indexserver: add ListRepos and GetIndexOptions by ID
- https://github.com/sourcegraph/zoekt/commit/310d5a0 indexserver: remove lastListRepos
- https://github.com/sourcegraph/zoekt/commit/2020810 indexserver: add queue to Server struct
- https://github.com/sourcegraph/zoekt/commit/6bd52fa inline shardRepoNames
- https://github.com/sourcegraph/zoekt/commit/23e7c11 indexserver: make queue based on RepoID
- https://github.com/sourcegraph/zoekt/commit/0b72829 shards: instrument Search aggregation to debug contention
- https://github.com/sourcegraph/zoekt/commit/413ad40 remove tracing in indexData.(Search|List)
- https://github.com/sourcegraph/zoekt/commit/619b380 merging: continue if merging fails for 1 compound
- https://github.com/sourcegraph/zoekt/commit/f2d7094 indexserver: port merging policy to Go
- https://github.com/sourcegraph/zoekt/commit/f774192 indexserver: move Name into IndexOptions struct
- https://github.com/sourcegraph/zoekt/commit/389e3d3 indexserver: vacuum tombstones
- https://github.com/sourcegraph/zoekt/commit/e40d62d gitindex: add latest commit date to metadata
- https://github.com/sourcegraph/zoekt/commit/bd030e0 include RegexpsConsidered in Stats Add and Zero methods