Bump spring.version from 3.4.3 to 3.4.4 (#123)

Bumps `spring.version` from 3.4.3 to 3.4.4.

Updates `org.springframework.boot:spring-boot-starter-web` from 3.4.3 to 3.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.4.3...v3.4.4)

Updates `org.springframework.boot:spring-boot-starter-validation` from 3.4.3 to 3.4.4
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.4.3...v3.4.4)

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

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

Author: dependabot[bot]

examples/spring-rest-service/pom.xml

@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>21</java.version>
-		<spring.version>3.4.3</spring.version>
+		<spring.version>3.4.4</spring.version>
 	</properties>
 
 	<dependencies>