Bump the micronaut group in /micronaut with 3 updates

Bumps the micronaut group in /micronaut with 3 updates: [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc), io.micronaut.application and io.micronaut.aot.


Updates `org.postgresql:postgresql` from 42.7.1 to 42.7.3
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.1...REL42.7.3)

Updates `io.micronaut.application` from 4.2.1 to 4.3.8

Updates `io.micronaut.aot` from 4.2.1 to 4.3.8

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: micronaut
- dependency-name: io.micronaut.application
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: micronaut
- dependency-name: io.micronaut.aot
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: micronaut
...

Signed-off-by: dependabot[bot] <[email protected]>

micronaut/build.gradle.kts

@@ -1,7 +1,7 @@
 plugins {
     id("com.github.johnrengelman.shadow") version "8.1.1"
-    id("io.micronaut.application") version "4.2.1"
-    id("io.micronaut.aot") version "4.2.1"
+    id("io.micronaut.application") version "4.3.8"
+    id("io.micronaut.aot") version "4.3.8"
 }
 
 version = "1.0.0"
@@ -48,7 +48,7 @@ dependencies {
     implementation("io.micronaut.validation:micronaut-validation")
     implementation("jakarta.validation:jakarta.validation-api")
     implementation("com.yugabyte:jdbc-yugabytedb:42.3.5-yb-4")
-    implementation("org.postgresql:postgresql:42.7.1")
+    implementation("org.postgresql:postgresql:42.7.3")
     runtimeOnly("ch.qos.logback:logback-classic")
     runtimeOnly("org.yaml:snakeyaml")
     runtimeOnly("org.fusesource.jansi:jansi:2.4.1")