Homebrew formula release

[var77]

Added release action to update homebrew formula version.
Added ability to specify pg_config from PG_CONFIG env variable on cmake/FindPostgreSQL.cmake, so we can be sure that homebrew formula will compile Lantern against the same postgres version it has found.

[codecov]

Codecov Report

Merging #183 (479b45a) into main (39b5b00) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #183   +/-   ##
=======================================
  Coverage   83.29%   83.29%           
=======================================
  Files          17       17           
  Lines        1161     1161           
  Branches      245      245           
=======================================
  Hits          967      967           
  Misses         85       85           
  Partials      109      109           

[github-actions]

Benchmarks

metric	old	new	pct change
recall (after create)	0.740	0.740	-
recall (after insert)	0.738	0.778	+5.42%
select bulk tps	214.972	239.951	+11.62%
select bulk latency (ms)	36.515	32.620	-10.67%
select bulk latency (stddev ms)	8.139	6.875	-15.53%
create latency (ms)	1497.447	1566.374	+4.60%
insert bulk tps	14.138	14.087	-0.37%
insert bulk latency (ms)	70.718	70.977	+0.37%
insert bulk latency (stddev ms)	3.203	2.302	-28.13%
disk usage (bytes)	6348800.000	6348800.000	-

[Ngalstyan4]

@var77, Merge this once the brew tap is ready