chore: update changelog to reflect #3098 fixed #2791

[dyladan]

This is simply updating the changelog to reflect that a bug was fixed while implementing another feature.

[dyladan]

This is fixed by #3098

The root cause was that the ExportRequestProto was a module-level global in a module which was a base class for the metric and trace exporters (old source). @legendecas fixed this while converting the proto exporters to use precompiled JS instead of loading protos in #3098 (link to PR lines) (new source).

originally posted in #2791 (comment)

[codecov]

Codecov Report

Merging #3111 (cef3e51) into main (5ae0a37) will not change coverage.
The diff coverage is n/a.

❗ Current head cef3e51 differs from pull request most recent head 8ef4184. Consider uploading reports for the commit 8ef4184 to get more accurate results

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  Misses        432      432