Bump the gradle group with 2 updates (#362)

Bumps the gradle group with 2 updates: org.flywaydb:flyway-database-postgresql and [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc).


Updates `org.flywaydb:flyway-database-postgresql` from 10.7.2 to 10.8.1

Updates `org.postgresql:postgresql` from 42.7.1 to 42.7.2
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/commits)

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-database-postgresql
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gradle
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

build.gradle.kts

@@ -7,10 +7,10 @@ val dusseldorfKtorVersion = "4.2.1"
 val jsonassertVersion = "1.5.1"
 
 // Database
-val flywayVersion = "10.7.2"
+val flywayVersion = "10.8.1"
 val hikariVersion = "5.1.0"
 val kotliqueryVersion = "1.9.0"
-val postgresVersion = "42.7.1"
+val postgresVersion = "42.7.2"
 val embeddedPostgres = "2.0.6"
 val embeddedPostgresBinaries = "12.9.0"