gwdatafind-server 2.2.0

Minor release.

Changes:

-   Fix directory recursion with Pelican memory cache
    ([!129](https://git.ligo.org/computing/gwdatafind/server/-/merge_requests/129))
-   Add Pelican cache versioning and compatibility checks
    ([!130](https://git.ligo.org/computing/gwdatafind/server/-/merge_requests/130))