fix(deps): update dependency org.postgresql:postgresql to v42.7.8

Author: renovate[bot]

gradle/libs.versions.toml

@@ -49,7 +49,7 @@ astra-db-client = "1.2.7"
 junit-bom = "5.10.2"
 kotlin = "2.0.21"
 ksp = "2.0.21-1.0.25"
-postgresql = "42.7.7"
+postgresql = "42.7.8"
 
 [libraries]
 # TODO Remove when non vulnerable versions exist