Fix issue with Azure OpenAI and metrics usage

[geoand]

Essentially the ChatLanguageModel was being
built too early thus messing up the construction
order of the dependencies

• Fixes: Upgrading 0.15.1 to 0.16.1 causes issues with micrometer #731

[geoand]

This fails because of the use cce6303 - I'll first need to fix that

[geoand]

This needs more thought on how to deal properly with the combination of the various features

[andreadimaio]

I moved the builder.build() outside of the Supplier<> to have the same instance for the ChatLanguageModel and the TokenCountEstimator. This is also done for the watsonx and bam modules, so if the fix is to put the operation inside, we should do the same for the other two modules.

[andreadimaio]

And also remove the following lines from the MultipleTokenCountEstimatorProvidersTest class: #50, #57, #64

[geoand]

Yup, I'm going to revert those changes

[geoand]

I tried a few things, but in the end the obvious fix is the one that makes most sense