Refers #1987
Notable changes:
- in server/lib/src/entry.rs - aiming to pass the enum instead of the strings
- changed signature of add_ava to take Attribute instead of &str (which is used in the entry_init macro... which was fun)
- set_ava<T> now takes Attribute
- added TryFrom<&AttrString> for Attribute
* yeet the time package into the future (updating min time version to 0.3.21)
* CI change to catch web ui builds in future, updating SCIM requirements
* removing allow deprecated flag
* making references to rfc3339 formatter shorter
* clippyisms
* fmt