fix(aws): change default handler context key

[dbyron-sf]

The aws sdk places a value in HandlerContextKey.OPERATION_NAME (e.g. GetObject) at least
some of the time, so use a default that's not one of the predefined HandlerContextKey
objects to avoid that.

I noticed this with a test of spectator 1.0.5 against a localstack container. Happy to add a test like that here is it's OK to add a test dependency on https://github.com/testcontainers/testcontainers-java. Sorry I didn't catch this earlier.

[brharrington]

Happy to add a test like that here is it's OK to add a test dependency on https://github.com/testcontainers/testcontainers-java

I'm not familiar with this, the main thing I would want to make sure is that it is fairly lightweight, reliable, and wouldn't significantly increase testing times. It can be done as a follow up later if there is sufficient need or interest.

[dbyron-sf]

Happy to add a test like that here is it's OK to add a test dependency on https://github.com/testcontainers/testcontainers-java

I'm not familiar with this, the main thing I would want to make sure is that it is fairly lightweight, reliable, and wouldn't significantly increase testing times. It can be done as a follow up later if there is sufficient need or interest.

Yeah, it would for sure increase testing times...probably significantly...time to pull a docker image, and then run it.

[dbyron-sf]

Thanks for merging this and releasing a new version so quickly!