Bump org.postgresql:postgresql in the postgresql group

Bumps the postgresql group with 1 update: [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc).


Updates `org.postgresql:postgresql` from 42.7.6 to 42.7.7
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.6...REL42.7.7)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: postgresql
...

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

Author: dependabot[bot]

pom.xml

@@ -57,7 +57,7 @@
         <spring-boot.version>3.5.0</spring-boot.version>
         <springdoc-openapi-starter-webmvc-ui.version>2.8.9</springdoc-openapi-starter-webmvc-ui.version>
 
-        <postgresql.version>42.7.6</postgresql.version>
+        <postgresql.version>42.7.7</postgresql.version>
         <testcontainers.version>1.21.1</testcontainers.version>
         <jacoco-maven-plugin.version>0.8.13</jacoco-maven-plugin.version>
         <omni-coveragereporter-maven-plugin.version>0.4.5</omni-coveragereporter-maven-plugin.version>