fix(profiling): re-accept interval for memory profile collector [backport 3.12]

[nsrip-dd]

In #14205 we removed the _interval parameter for the MemoryCollector.
This was a mistake. Now the memory profile collector thread basically
spins in a tight loop because the interval is 0. Add that parameter
back.

Backports #14276 to the 3.12 branch. This was fixed in 3.12.0 but
somehow didn't make it to 3.12.1 or 3.12.2

The actual fix was picked up by #14487 and this PR is mainly to add a release note.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

releasenotes/notes/profiling-fix-memalloc-collector-spin-regression-97b4b8093a89c54f.yaml  @DataDog/apm-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 280 ± 6 ms.

The average import time from base is: 281 ± 6 ms.

The import time difference between this PR and base is: -0.4 ± 0.3 ms.

The difference is not statistically significant (z = -1.27).

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.919 ms (0.68%)

ddtrace.bootstrap.sitecustomize 1.246 ms (0.44%)

ddtrace.bootstrap.preload 1.246 ms (0.44%)

ddtrace.internal.remoteconfig.client 0.626 ms (0.22%)

ddtrace 0.673 ms (0.24%)

ddtrace.internal._unpatched 0.026 ms (0.01%)

json 0.026 ms (0.01%)

json.decoder 0.026 ms (0.01%)

re 0.026 ms (0.01%)

enum 0.026 ms (0.01%)

types 0.026 ms (0.01%)