chore(deps): Update dependency com.lightbend.akka:akka-projection-r2dbc_2.13 to v1.5.4

Author: renovate[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ akka = "2.8.5"
 jackson = "2.15.3"
 maven_artifact = "3.9.5"
 akkaManagementVersion = "1.4.1"
-akkaProjection = "1.4.2"
+akkaProjection = "1.5.4"
 akkaR2DBC = "1.1.2"
 vavr = "0.10.4"
 jakartaValidation = "3.0.2"