build(deps): Bump springboot.version from 3.5.6 to 3.5.7

Bumps `springboot.version` from 3.5.6 to 3.5.7.

Updates `org.springframework.boot:spring-boot-starter-web` from 3.5.6 to 3.5.7
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v3.5.7)

Updates `org.springframework.boot:spring-boot-starter-test` from 3.5.6 to 3.5.7
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v3.5.7)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-starter-web
  dependency-version: 3.5.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-test
  dependency-version: 3.5.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -164,7 +164,7 @@
     <moshi.version>1.15.2</moshi.version>
     <slf4j.version>2.0.17</slf4j.version>
     <json.version>20250517</json.version>
-    <springboot.version>3.5.6</springboot.version>
+    <springboot.version>3.5.7</springboot.version>
 
     <junit5.version>6.0.0</junit5.version>
     <jackson.version>2.20.0</jackson.version>