Don't short-circut when searching with `ids`

[gadomski]

Per radiantearth/stac-api-spec#125, ids should not short circuit search:

pgstac/sql/004_search.sql

Lines 640 to 643 in 6422105

	-- if ids is set, short circuit and just use direct ids query for each id
	-- skip any paging or caching
	-- hard codes ordering in the same order as the array of ids
	IF _search ? 'ids' THEN

Blocking

• This issue blocks Change to semantics of ids parameter in STAC API 1.0.0-beta.2 stac-fastapi-pgstac#31