build(deps): bump org.apache.httpcomponents.core5:httpcore5-h2

Bumps [org.apache.httpcomponents.core5:httpcore5-h2](https://github.com/apache/httpcomponents-core) from 5.4.1 to 5.4.3.
- [Changelog](https://github.com/apache/httpcomponents-core/blob/rel/v5.4.3/RELEASE_NOTES.txt)
- [Commits](apache/httpcomponents-core@rel/v5.4.1...rel/v5.4.3)

---
updated-dependencies:
- dependency-name: org.apache.httpcomponents.core5:httpcore5-h2
  dependency-version: 5.4.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

modules/samples/userguide/src/userguide/springbootdemo-tomcat11/META-INF/maven/userguide.springboot/axis2-json-api/pom.xml

@@ -210,7 +210,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents.core5</groupId>
             <artifactId>httpcore5-h2</artifactId>
-            <version>5.4.1</version>
+            <version>5.4.3</version>
         </dependency>
         <!-- Axiom (XML object model — still needed by kernel internals) -->
         <dependency>