* Reorganize tests
This breaks up the large `crate::tests` module by moving some of the
tests into a place that makes more sense. For example tests of JSON
serialization are moved to the `crate::json` module. The remaining routing
tests have been moved to `crate::routing::tests`.
I generally prefer having tests close to the code they're testing. Makes
it easier to see how/if something is tested.
* Try pinning to older version of async-graphql
* Revert "Try pinning to older version of async-graphql"
This reverts commit 2e2cae7d12f5e433a16d6607497d587863f04384.
* don't test examples on 1.54 on CI
* move ci steps around a bit
