docker/api/requirements: fix api container build failure

Fix build failures of `api` container. Error logs can be found
at ```https://github.com/kernelci/kernelci-api/issues/303```.

Root cause:
`fastapi[all] 0.68.1` package installs `pyyaml 5.4.1` package
internally. That again depends on `Cython` package.
Due to the recent upgrade to `Cython 3.0.0`, `pyyaml 5.4.1` stopped
building with `python 3.10`. To fix this, upgrading `fastapi[all]`
to `0.99.1` version as that uses `pyyaml 6.0.1`. The selected
`fastapi` version is compatible with current `fastapi-pagination`
and `fastapi-versioning` packages.

Signed-off-by: Jeny Sadadia <jeny.sadadia@collabora.com>

Author: Jeny Sadadia

docker/api/requirements.txt

@@ -1,6 +1,6 @@
 aioredis[hiredis]==2.0.0
 cloudevents==1.9.0
-fastapi[all]==0.68.1
+fastapi[all]==0.99.1
 fastapi-pagination==0.9.3
 passlib==1.7.4
 pydantic==1.10.5