chore(profiling): add process_tags

[dubloom]

This PR implements this RFC for profiling.

Add process_tags to profiling tags

Testing

• Check that process tags are not included in profiling tags if deactivated
• Check the right process tags are added in profiling tags when activated

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/profiling/profiler.py                                           @DataDog/profiling-python
tests/profiling/test_profiler.py                                        @DataDog/profiling-python
tests/profiling_v2/exporter/test_ddup.py                                @DataDog/profiling-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 205 ± 3 ms.

The average import time from base is: 210 ± 4 ms.

The import time difference between this PR and base is: -5.9 ± 0.2 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 2.062 ms (1.01%)

ddtrace.bootstrap.sitecustomize 1.350 ms (0.66%)

ddtrace.bootstrap.preload 1.350 ms (0.66%)

ddtrace.internal.remoteconfig.client 0.603 ms (0.29%)

ddtrace 0.713 ms (0.35%)

ddtrace.internal._unpatched 0.148 ms (0.07%)

subprocess 0.107 ms (0.05%)

contextlib 0.107 ms (0.05%)

json 0.042 ms (0.02%)

json.decoder 0.042 ms (0.02%)

re 0.042 ms (0.02%)

enum 0.042 ms (0.02%)

types 0.042 ms (0.02%)

ddtrace._logger 0.098 ms (0.05%)

ddtrace.internal.telemetry 0.098 ms (0.05%)

ddtrace.internal.utils.formats 0.098 ms (0.05%)

ddtrace.internal.compat 0.098 ms (0.05%)

wrapt 0.098 ms (0.05%)

wrapt.importer 0.098 ms (0.05%)

importlib.metadata 0.098 ms (0.05%)