Update dependency geoalchemy2 to v0.15.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
geoalchemy2 (source)	==0.15.1 -> ==0.15.2

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Release Notes

geoalchemy/geoalchemy2 (geoalchemy2)

v0.15.2

Compare Source

• Fix: Can handle negative coordinates with Spatialite @​adrien-berchet (#​517)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.51%. Comparing base (3a31466) to head (2a8e436).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2022   +/-   ##
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  Coverage   85.51%   85.51%           
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  Files         120      120           
  Lines        5275     5275           
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  Hits         4511     4511           
  Misses        764      764           

Flag	Coverage Δ
unittests	85.51% <ø> (ø)

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