Unable to override uri-endpoint-override override-endpoint options for STS - amazon-web-services

Question

Our goal is to no longer access AWS endpoints via a custom proxy but to access them via VPC endpoints from AWS. To make this work in our secured network we use our own VPC endpoints which we configure with the option: uri-endpoint-override (string) and override-endpoint (boolean). Now the problem is that the options are not used at all and the application always uses the default endpoints which have no access in our network. Because of this the STS component can't execute a HTTP request.
And in the console the following error message appears:
Unable to execute HTTP request: Connect to sts.eu-central-1.amazonaws.com:443 [sts.eu-central-1.amazonaws.com/54.239.54.207] failed: Connect timed out, ContainerCredentialsProvider(): Cannot fetch credentials from container - neither AWS_CONTAINER_CREDENTIALS_FULL_URI or AWS_CONTAINER_CREDENTIALS_RELATIVE_URI environment variables are set
As taken from the error message, the default endpoint sts.eu-central-1.amazonaws.com:443 is used.
This is how our application.properties looks in which the options are set:
camel.component.aws2-sts.override-endpoint=true
camel.component.aws2-sts.uri-endpoint-override=https://vpce-???-???.sts.eu central1.vpce.amazonaws.com
We are using the following versions:
Apache Camel 3.14.2
Spring Boot 2.5.10
Dependencies
<properties>
<java.version>14</java.version>
<camel.version>3.14.2</camel.version>
<spring-boot.version>2.5.10</spring-boot.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-aws2-s3-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-aws2-sts-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jetty</artifactId>
<version>${camel.version}</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-json-validator</artifactId>
<version>${camel.version}</version>
</dependency>
</dependencies>
Info
With ticket CAMEL-16171 , Camel added the usage of uri-endpoint-override and override-endpoint options attributes for all AWS components among others for STS.
Do you have any idea why the options are not overwritten? Thanks a lot for your help!