Fix calls to read_hats

[delucchi-cmu]

Type-specific calls removed in PR astronomy-commons/hats#394

[github-actions]

Before [4956672]	After [f088628]	Ratio	Benchmark (Parameter)
failed	failed	n/a	benchmarks.BinningSuite.time_read_histogram

Click here to view all benchmarks.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.64%. Comparing base (4956672) to head (8651b22).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #420   +/-   ##
=======================================
  Coverage   98.63%   98.64%           
=======================================
  Files          28       28           
  Lines        1615     1620    +5     
=======================================
+ Hits         1593     1598    +5     
  Misses         22       22           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.