chore(deps): bump the minorandpatch group in /backend with 5 updates

Bumps the minorandpatch group in /backend with 5 updates:

| Package | From | To |
| --- | --- | --- |
| org.flywaydb:flyway-database-postgresql | `10.17.2` | `10.17.3` |
| [org.jetbrains.exposed:exposed-spring-boot-starter](https://github.com/JetBrains/Exposed) | `0.53.0` | `0.54.0` |
| [org.jetbrains.exposed:exposed-jdbc](https://github.com/JetBrains/Exposed) | `0.53.0` | `0.54.0` |
| [org.jetbrains.exposed:exposed-json](https://github.com/JetBrains/Exposed) | `0.53.0` | `0.54.0` |
| [org.jetbrains.exposed:exposed-kotlin-datetime](https://github.com/JetBrains/Exposed) | `0.53.0` | `0.54.0` |


Updates `org.flywaydb:flyway-database-postgresql` from 10.17.2 to 10.17.3

Updates `org.jetbrains.exposed:exposed-spring-boot-starter` from 0.53.0 to 0.54.0
- [Release notes](https://github.com/JetBrains/Exposed/releases)
- [Changelog](https://github.com/JetBrains/Exposed/blob/main/CHANGELOG.md)
- [Commits](JetBrains/Exposed@0.53.0...0.54.0)

Updates `org.jetbrains.exposed:exposed-jdbc` from 0.53.0 to 0.54.0
- [Release notes](https://github.com/JetBrains/Exposed/releases)
- [Changelog](https://github.com/JetBrains/Exposed/blob/main/CHANGELOG.md)
- [Commits](JetBrains/Exposed@0.53.0...0.54.0)

Updates `org.jetbrains.exposed:exposed-json` from 0.53.0 to 0.54.0
- [Release notes](https://github.com/JetBrains/Exposed/releases)
- [Changelog](https://github.com/JetBrains/Exposed/blob/main/CHANGELOG.md)
- [Commits](JetBrains/Exposed@0.53.0...0.54.0)

Updates `org.jetbrains.exposed:exposed-kotlin-datetime` from 0.53.0 to 0.54.0
- [Release notes](https://github.com/JetBrains/Exposed/releases)
- [Changelog](https://github.com/JetBrains/Exposed/blob/main/CHANGELOG.md)
- [Commits](JetBrains/Exposed@0.53.0...0.54.0)

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-database-postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minorandpatch
- dependency-name: org.jetbrains.exposed:exposed-spring-boot-starter
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minorandpatch
- dependency-name: org.jetbrains.exposed:exposed-jdbc
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minorandpatch
- dependency-name: org.jetbrains.exposed:exposed-json
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minorandpatch
- dependency-name: org.jetbrains.exposed:exposed-kotlin-datetime
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minorandpatch
...

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

backend/build.gradle

@@ -35,11 +35,11 @@ dependencies {
     implementation "org.postgresql:postgresql:42.7.4"
     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:10.17.2"
-    implementation "org.jetbrains.exposed:exposed-spring-boot-starter:0.53.0"
-    implementation "org.jetbrains.exposed:exposed-jdbc:0.53.0"
-    implementation "org.jetbrains.exposed:exposed-json:0.53.0"
-    implementation "org.jetbrains.exposed:exposed-kotlin-datetime:0.53.0"
+    implementation "org.flywaydb:flyway-database-postgresql:10.17.3"
+    implementation "org.jetbrains.exposed:exposed-spring-boot-starter:0.54.0"
+    implementation "org.jetbrains.exposed:exposed-jdbc:0.54.0"
+    implementation "org.jetbrains.exposed:exposed-json:0.54.0"
+    implementation "org.jetbrains.exposed:exposed-kotlin-datetime:0.54.0"
     implementation "org.jetbrains.kotlinx:kotlinx-datetime:0.6.1"
     implementation "org.hibernate.validator:hibernate-validator:8.0.1.Final"
     implementation "org.keycloak:keycloak-admin-client:23.0.7"