fix: Update Gradle dependencies to v10.20.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.flywaydb:flyway-database-postgresql (source)	10.19.0 -> 10.20.0
org.flywaydb:flyway-core (source)	10.19.0 -> 10.20.0

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Release Notes

flyway/flyway (org.flywaydb:flyway-database-postgresql)

v10.20.0: Flyway 10.20.0

See release notes here

CLI artifact available here

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.30%. Comparing base (d964424) to head (f8c81ca).
Report is 1 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##               main     #235       +/-   ##
=============================================
+ Coverage     17.48%   97.30%   +79.82%     
- Complexity       16      141      +125     
=============================================
  Files            27       27               
  Lines           669      669               
  Branches         24       24               
=============================================
+ Hits            117      651      +534     
+ Misses          549        6      -543     
- Partials          3       12        +9     

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