chore(deps): bump the patch group in /backend with 4 updates

Bumps the patch group in /backend with 4 updates: org.flywaydb:flyway-database-postgresql, [com.github.luben:zstd-jni](https://github.com/luben/zstd-jni), [org.testcontainers:postgresql](https://github.com/testcontainers/testcontainers-java) and [org.springframework.boot](https://github.com/spring-projects/spring-boot).


Updates `org.flywaydb:flyway-database-postgresql` from 11.3.2 to 11.3.3

Updates `com.github.luben:zstd-jni` from 1.5.6-10 to 1.5.7-1
- [Commits](luben/zstd-jni@v1.5.6-10...v1.5.7-1)

Updates `org.testcontainers:postgresql` from 1.20.4 to 1.20.5
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.4...1.20.5)

Updates `org.springframework.boot` from 3.4.2 to 3.4.3
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.4.2...v3.4.3)

---
updated-dependencies:
- dependency-name: org.flywaydb:flyway-database-postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
- dependency-name: com.github.luben:zstd-jni
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
- dependency-name: org.testcontainers:postgresql
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
- dependency-name: org.springframework.boot
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
...

Signed-off-by: dependabot[bot] <[email protected]>

backend/build.gradle

@@ -2,7 +2,7 @@ import org.gradle.api.tasks.testing.logging.TestExceptionFormat
 import org.gradle.api.tasks.testing.logging.TestLogEvent
 
 plugins {
-    id 'org.springframework.boot' version '3.4.2'
+    id 'org.springframework.boot' version '3.4.3'
     id 'io.spring.dependency-management' version '1.1.7'
     // If kotlin version bumped, check if gradle version can be bumped as well 
     // Check here: https://kotlinlang.org/docs/gradle-configure-project.html#apply-the-plugin
@@ -37,7 +37,7 @@ dependencies {
     implementation "org.postgresql:postgresql:42.7.5"
     implementation "org.apache.commons:commons-csv:1.13.0"
     implementation "org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.5"
-    implementation "org.flywaydb:flyway-database-postgresql:11.3.2"
+    implementation "org.flywaydb:flyway-database-postgresql:11.3.3"
     implementation "org.jetbrains.exposed:exposed-spring-boot-starter:0.59.0"
     implementation "org.jetbrains.exposed:exposed-jdbc:0.59.0"
     implementation "org.jetbrains.exposed:exposed-json:0.59.0"
@@ -50,7 +50,7 @@ dependencies {
     implementation "org.springframework.boot:spring-boot-starter-security"
 
     implementation 'org.apache.commons:commons-compress:1.27.1'
-    implementation 'com.github.luben:zstd-jni:1.5.6-10'
+    implementation 'com.github.luben:zstd-jni:1.5.7-1'
     implementation 'org.tukaani:xz:1.10'
 
     implementation("org.redundent:kotlin-xml-builder:1.9.1")
@@ -63,7 +63,7 @@ dependencies {
     testImplementation "io.jsonwebtoken:jjwt-impl:0.12.6"
     testImplementation "io.jsonwebtoken:jjwt-jackson:0.12.6"
     testImplementation "com.ninja-squad:springmockk:4.0.2"
-    testImplementation "org.testcontainers:postgresql:1.20.4"
+    testImplementation "org.testcontainers:postgresql:1.20.5"
     testImplementation "org.junit.platform:junit-platform-launcher:1.11.4"
     ktlint("com.pinterest.ktlint:ktlint-cli:1.5.0") {
         attributes {