Update dependency com.h2database:h2 to v2.4.240 (#260)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 # Core dependencies
 doma = "3.11.0"
 freemarker = "2.3.34"
-h2 = "2.3.232"
+h2 = "2.4.240"
 postgresql = "42.7.8"
 
 # Testing