Add issue template for release tracking

[delucchi-cmu]

First pass on release checklist.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.67%. Comparing base (a4ec88c) to head (0effc0e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #496   +/-   ##
=======================================
  Coverage   97.67%   97.67%           
=======================================
  Files          39       39           
  Lines        1550     1550           
=======================================
  Hits         1514     1514           
  Misses         36       36           

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[github-actions]

Before [a4ec88c] <v0.4.2>	After [b08fb1b]	Ratio	Benchmark (Parameter)
2.21±0.02s	2.22±0.01s	1.01	benchmarks.time_create_midsize_catalog
100±1ms	101±0.5ms	1.01	benchmarks.time_kdtree_crossmatch
29.8±0.2ms	29.7±0.3ms	1	benchmarks.time_polygon_search
15.7±0.4ms	15.6±0.04ms	0.99	benchmarks.time_box_filter_on_partition
14.8±0.01s	14.7±0s	0.99	benchmarks.time_create_large_catalog

Click here to view all benchmarks.

[nevencaplar]

Looks good to me.