Bump the backend group with 2 updates (#131)

Bumps the backend group with 2 updates: [org.flywaydb:flyway-core](https://github.com/flyway/flyway) and org.flywaydb:flyway-mysql.


Updates `org.flywaydb:flyway-core` from 10.11.1 to 10.12.0
- [Release notes](https://github.com/flyway/flyway/releases)
- [Commits](flyway/flyway@flyway-10.11.1...flyway-10.12.0)

Updates `org.flywaydb:flyway-mysql` from 10.11.1 to 10.12.0

Updates `org.flywaydb:flyway-mysql` from 10.11.1 to 10.12.0

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
- dependency-name: org.flywaydb:flyway-mysql
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
- dependency-name: org.flywaydb:flyway-mysql
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend
...

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

pom.xml

@@ -46,7 +46,7 @@
     <!-- 3rd-party library versions -->
     <spring-boot-bom.version>3.2.5</spring-boot-bom.version>
     <junixsocket.version>2.9.1</junixsocket.version>
-    <flyway.version>10.11.1</flyway.version>
+    <flyway.version>10.12.0</flyway.version>
     <artemis.version>2.33.0</artemis.version>
     <r2dbc-mysql.version>1.1.3</r2dbc-mysql.version>
     <r2dbc-mariadb.version>1.2.0</r2dbc-mariadb.version>