Bump postgresql from 1.17.3 to 1.17.6

Bumps [postgresql](https://github.com/testcontainers/testcontainers-java) from 1.17.3 to 1.17.6.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.17.3...1.17.6)

---
updated-dependencies:
- dependency-name: org.testcontainers:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -21,7 +21,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 
     implementation 'org.testcontainers:testcontainers:1.17.6'
-    implementation 'org.testcontainers:postgresql:1.17.3'
+    implementation 'org.testcontainers:postgresql:1.17.6'
 
     compileOnly 'org.projectlombok:lombok:1.18.24'
     annotationProcessor 'org.projectlombok:lombok:1.18.22'