Bump org.springframework.cloud:spring-cloud-starter-openfeign (#2320)

Bumps [org.springframework.cloud:spring-cloud-starter-openfeign](https://github.com/spring-cloud/spring-cloud-openfeign) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/spring-cloud/spring-cloud-openfeign/releases)
- [Commits](https://github.com/spring-cloud/spring-cloud-openfeign/compare/v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: org.springframework.cloud:spring-cloud-starter-openfeign
  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>

hawkbit-sdk/pom.xml

@@ -24,7 +24,7 @@
     <name>hawkBit :: SDK :: Parent</name>
 
     <properties>
-        <spring-cloud-starter-openfeign.version>4.2.0</spring-cloud-starter-openfeign.version>
+        <spring-cloud-starter-openfeign.version>4.2.1</spring-cloud-starter-openfeign.version>
         <openfeign-hc5.version>13.5</openfeign-hc5.version>
         <bouncycastle.version>1.80</bouncycastle.version>
     </properties>