Allow setting platform specific classifier for aws-crt-client

### Describe the feature

The aws-crt package is a large JAR that contains all compiled C libraries for many different platforms (Windows, Linux, etc). However, it provides the possiblity to build platform specific JARs by setting a classifier ([Reference](https://github.com/awslabs/aws-crt-java?tab=readme-ov-file#platform-specific-jars)).

Example:
```xml

software.amazon.awssdk.crt
aws-crt
0.29.20
linux-x86_64

```

**Why:**

The size of an example project generated with the AWS SDK Maven Archetype + AWS CRT Client as an Uber-Jar as well as a GraalVM native image is significantly smaller with the classifier as it only includes the needed C libraries for the target platform:

| Artifact Type | Default Artifact Size | With Platform Classifier (osx-x86_64) | Reduction in % |
|---|---|---|---|
| Uber JAR | 24.7 MB | 8.5 MB | 65.59% | |
| GraalVM native image | 175 MB | 92.7 MB | 47.21% |

**Problem:**

When using the AWS SDK it is not possible to set the classifier on the aws-crt-client dependency directly:

```xml

software.amazon.awssdk
aws-crt-client
linux-x86_64

```

The current workaround is to exlude the aws-crt dependency and override it including the classifier. However, then also the aws-crt version has to be set:

```xml

software.amazon.awssdk
aws-crt-client


software.amazon.awssdk.crt
aws-crt

software.amazon.awssdk.crt
aws-crt
0.29.20
linux-x86_64

```

### Proposed Solution

TBD

### Other Information

_No response_

### Acknowledgements

- [X] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

### AWS Java SDK version used

2.26.3

### JDK version used

21

### Operating System and version

OSX