chore(deps): bump org.flywaydb:flyway-database-postgresql (#2227)

Bumps the minorandpatch group in /backend with 1 update: org.flywaydb:flyway-database-postgresql.


Updates `org.flywaydb:flyway-database-postgresql` from 10.15.0 to 10.15.2

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-database-postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minorandpatch
...

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

backend/build.gradle

@@ -35,7 +35,7 @@ dependencies {
     implementation "org.postgresql:postgresql:42.7.3"
     implementation "org.apache.commons:commons-csv:1.11.0"
     implementation "org.springdoc:springdoc-openapi-starter-webmvc-ui:2.6.0"
-    implementation "org.flywaydb:flyway-database-postgresql:10.15.0"
+    implementation "org.flywaydb:flyway-database-postgresql:10.15.2"
     implementation "org.jetbrains.exposed:exposed-spring-boot-starter:0.52.0"
     implementation "org.jetbrains.exposed:exposed-jdbc:0.52.0"
     implementation "org.jetbrains.exposed:exposed-json:0.52.0"