fix(deps): update dependency org.springframework.boot:spring-boot-starter-parent to v3.4.3 (#21)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

refarch-backend/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.4.1</version>
+        <version>3.4.3</version>
         <relativePath/>
     </parent>