Use updated attributes with ATTR prefix in all packages

[JamieDanielson]

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This is part of Semantic Convention Update: Tracking Issue #4572.

After #4690 lands and the new semantic conventions package is ready, all semantic convention attributes will need to be updated to use the new attributes, located in the new experimental(/incubating? tbd) directory.

This issue is for changing SEMRESATTRS_ and RESATTRS_ prefixes to just ATTR_ for attributes. No new attributes should be added in this change.

The next changes will add the env var, update instrumentations for stable http attributes, and use new metric attributes.

Currently blocked on #4690