chore: unpin semantic-conventions package dep

[trentm]

There is no need to pin deps for the semantic-conventions package.
Our recommendation is to not pin, to allow for de-duplication of installs
of the package in node_modules trees to reduce install size.
The concerns that motivate pinning other otel deps, described in
#5283, do
not apply to the semantic-conventions package.

This also removes the updating of the semconv deps when the semconv
package is released. There should be no need to do so. A particular
package can bump its minimum semconv dep if/when it uses exports
in a newer version.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.79%. Comparing base (b9d5aee) to head (045801c).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5439   +/-   ##
=======================================
  Coverage   94.79%   94.79%           
=======================================
  Files         310      310           
  Lines        7974     7974           
  Branches     1682     1682           
=======================================
  Hits         7559     7559           
  Misses        415      415           

[pichlermarc]

Looks good. 👍

[pichlermarc]

Note for anyone looking at this who's thinking of un-pinning other packages:

• @opentelemetry/semantic-conventions is an exception for now
• we're aware that other packages should be un-pinned as well
  • It looks easy and safe to do on the surface but it is not (see [all] limitations of our type exports and proposed ways forward #5283). We're working on that and we've already done a lot of work to make that happen, please be patient.
  • un-pinning packages will be initiated by maintainers or approvers of the repository - PRs opened by anyone else will be closed.