refactor(809): guarantee test cleanup

cache: ensure that the default repo has a non-empty name to make js/apollo happy

Note that examples still need to shown how a developer would use the library.

fix(778): git bug rm broken

build(deps): bump github.com/xanzy/go-gitlab from 0.64.0 to 0.68.0

build(deps): bump github.com/stretchr/testify from 1.7.1 to 1.7.2

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.7.1 to 1.7.2.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](https://github.com/stretchr/testify/compare/v1.7.1...v1.7.2)

---
updated-dependencies:
- dependency-name: github.com/stretchr/testify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Feat/configurable local storage

Github: fix data race

graphql: fix two invalid mutex lock leading to data races

I believe the issue was twofold:

When done importing, the calling context is likely still valid, so if the output channel is not read enough and reach capacity, some event producer down the line can be blocked trying to send in that channel. When closing it, this send is still trying to proceed, which is illegal in go.

In rateLimitHandlerClient, there was a need to 2 different type of output channel: core.ExportResult and ImportEvent. To do so, the previous code was using a single channel type RateLimitingEvent and a series of goroutines to read/cast/send to the final channel. This could result in more async goroutine being stuck trying to send in an at-capacity channel. Instead, the code now use a simple synchronous callback to directly push to the final output channel. No concurrency needed anymore and the code is simpler.

Any of those fixes could have resolved the data race, but both fixes is more correct.

doc: more discoverable docs

misc: move all completions in a dedicated folder