Update dependency org.postgresql:postgresql to v42.7.4 (#50)

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

Author: renovate[bot]

postgres-cdc/build.gradle

@@ -5,7 +5,7 @@ plugins {
 description = "Stream changes from PostgreSQL database (Change Data Capture)."
 
 dependencies {
-    implementation("org.postgresql:postgresql:42.7.3")
+    implementation("org.postgresql:postgresql:42.7.4")
     implementation("org.slf4j:slf4j-api:2.0.16")
 
     implementation(platform("com.fasterxml.jackson:jackson-bom:2.17.2"))