[Bug]: Reject illformed GBK Coders

### What happened?

```
p.apply(
Create.of(KV.of("X", "Y"))
.withCoder(KvCoder.of(StringUtf8Coder.of(), StringUtf8Coder.of())))
.apply(GroupByKey.create())
.setCoder(
SerializableCoder.of(
TypeDescriptors.kvs(
TypeDescriptors.strings(),
TypeDescriptors.iterables(TypeDescriptors.strings()))));
```

The pipeline above exemplifies how it is, at the moment, acceptable to author pipelines with opaque input/output GBK coders whose semantics clearly violate that of Beam's programming model.
Pipelines of this kind should be rejected by SDKs during pipeline creation time itself.

### Issue Priority

Priority: 1

### Issue Component

Component: sdk-java-core