feat: generate protos for profiles collector

[korniltsev]

Changes

This change allows setting up a profiles collector client. This will allow to send profiles to collectors from Rust.

Merge requirement checklist

• CONTRIBUTING guidelines followed
• Unit tests added/updated (if applicable)
• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.1%. Comparing base (0e3511e) to head (828a567).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #3077     +/-   ##
=======================================
- Coverage   80.1%   80.1%   -0.1%     
=======================================
  Files        126     126             
  Lines      21949   21949             
=======================================
- Hits       17603   17599      -4     
- Misses      4346    4350      +4     

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[Copilot]

Pull Request Overview

This PR adds support for generating Rust protobuf bindings for the OpenTelemetry profiles collector service, enabling Rust applications to send profiling data to OpenTelemetry collectors.

• Adds profiles collector service proto file to the build configuration
• Generates new tonic client and server implementations for the ProfilesService
• Updates module structure to properly expose the profiles collector API
• Corrects module naming inconsistency for profiles v1development

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
opentelemetry-proto/tests/grpc_build.rs	Adds profiles_service.proto to the list of files for tonic generation
opentelemetry-proto/src/proto/tonic/opentelemetry.proto.collector.profiles.v1development.rs	Generated tonic client/server code for ProfilesService with export functionality
opentelemetry-proto/src/proto.rs	Adds profiles collector module and fixes profiles module naming consistency
opentelemetry-proto/CHANGELOG.md	Documents the addition of profiles collector proto generation