[crashtracker] Use common Endpoint to further decouple from profiler

[danielsn]

What does this PR do?

Uses the ddcommon::Endpoint rather than the profiling-ffi::exporter::Endpoint.

Motivation

We're trying to decouple the crashtracker and the profiler, this removes one of the final remaining links.

Additional Notes

This is a breaking change for users of the API.
Eventually, the profiling-ffi endpoint type itself should probably be unified with this.

How to test the change?

Compile and run the modified example file.

PROF-10245

[pr-commenter]

Benchmarks

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.

Project coverage is 70.45%. Comparing base (32d5eae) to head (370f8d1).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #549      +/-   ##
==========================================
- Coverage   70.46%   70.45%   -0.01%     
==========================================
  Files         213      213              
  Lines       28425    28429       +4     
==========================================
  Hits        20031    20031              
- Misses       8394     8398       +4     

Components	Coverage Δ
crashtracker	25.21% <ø> (ø)
datadog-alloc	98.73% <ø> (ø)
data-pipeline	50.00% <ø> (ø)
data-pipeline-ffi	0.00% <ø> (ø)
ddcommon	86.23% <0.00%> (-0.20%)	⬇️
ddcommon-ffi	74.58% <0.00%> (-0.72%)	⬇️
ddtelemetry	58.95% <ø> (ø)
ipc	84.18% <ø> (ø)
profiling	78.09% <0.00%> (ø)
profiling-ffi	56.76% <0.00%> (ø)
serverless	0.00% <ø> (ø)
sidecar	35.42% <ø> (ø)
sidecar-ffi	0.00% <ø> (ø)
spawn-worker	54.98% <ø> (ø)
trace-mini-agent	71.14% <ø> (ø)
trace-normalization	98.24% <ø> (ø)
trace-obfuscation	95.73% <ø> (ø)
trace-protobuf	77.16% <ø> (ø)
trace-utils	91.03% <ø> (ø)

[danielsn]

PROF-10245