Upgrade pdata to v1.5.0

[dmathieu]

Description

Proto 1.5.0 has been released. This upgrades pdata to use that version.
See https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v1.5.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.62%. Comparing base (4fc50a8) to head (f822c58).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11932      +/-   ##
==========================================
+ Coverage   91.59%   91.62%   +0.03%     
==========================================
  Files         448      447       -1     
  Lines       23759    23737      -22     
==========================================
- Hits        21761    21749      -12     
+ Misses       1623     1613      -10     
  Partials      375      375              

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[dmathieu]

This method prevents panics on contrib. It's not a great solution either though, as it makes attributes readable, but not writable (and we can't make them writable, since we can't look for changes in pcommon.Map).

[mx-psi]

I wonder if it makes more sense to just remove this. It's a bigger breakage, but it's more noticeable that writes silently failing

[dmathieu]

Unfortunately, due to a change in the way profile attributes are handled, this brings a breaking change to contrib, which isn't really fixable (we can read the data from the old method, but not write).
The contrib fix is here: open-telemetry/opentelemetry-collector-contrib#36868

I'd suggest a coordinated merge of the two PRs.