Update dependency org.postgresql:postgresql to v42.2.23

Author: renovate-bot

build.sbt

@@ -228,7 +228,7 @@ lazy val packagehub = project
         "com.google.cloud.sql" % "postgres-socket-factory" % "1.3.0",
         "com.zaxxer" % "HikariCP" % "4.0.3",
         "org.flywaydb" % "flyway-core" % "7.7.1",
-        "org.postgresql" % "postgresql" % "42.2.14",
+        "org.postgresql" % "postgresql" % "42.2.23",
         "org.rauschig" % "jarchivelib" % "1.1.0",
         "org.scalameta" %% "scalameta" % V.scalameta,
         "com.lihaoyi" %% "cask" % "0.7.8"