Bump the development-dependencies group with 2 updates (#9419)

Bumps the development-dependencies group with 2 updates: [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) and [io.spring.develocity.conventions](https://github.com/spring-io/develocity-conventions).


Updates `org.postgresql:postgresql` from 42.7.3 to 42.7.4
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/compare/REL42.7.3...REL42.7.4)

Updates `io.spring.develocity.conventions` from 0.0.19 to 0.0.20
- [Release notes](https://github.com/spring-io/develocity-conventions/releases)
- [Commits](https://github.com/spring-io/develocity-conventions/compare/v0.0.19...v0.0.20)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
- dependency-name: io.spring.develocity.conventions
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: development-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -100,7 +100,7 @@ ext {
     mysqlVersion = '9.0.0'
     oracleVersion = '23.5.0.24.07'
     pahoMqttClientVersion = '1.2.5'
-    postgresVersion = '42.7.3'
+    postgresVersion = '42.7.4'
     protobufVersion = '4.27.3'
     r2dbch2Version = '1.0.0.RELEASE'
     reactorVersion = '2024.0.0-M5'

settings.gradle

@@ -7,7 +7,7 @@ pluginManagement {
 
 plugins {
 	id 'com.gradle.develocity' version '3.17.6'
-	id 'io.spring.develocity.conventions' version '0.0.19'
+	id 'io.spring.develocity.conventions' version '0.0.20'
 }
 
 rootProject.name = 'spring-integration'