update ddtrace 1.6.3 to 1.6.4 (DataDog#288)

* update ddtrace 1.6.3 to 1.6.4

* ran poetry update ddtrace

* poetry update (all dependencies)

use context.aws_request_id instead of http payload's requestId in the…

… spans' tags (DataDog#266)

Fix error when APIGateway headers are None (DataDog#259)

* Don't error when headers are None

* Fix formatting of file

Do not raise exception If "domainName" is not present. (DataDog#254)

feat: Use dd-trace-141 (DataDog#246)

[beta] Python Profiling support (DataDog#244)

* feat: Python Profiler WIP

* feat: start on cold start, stop never

* breaking: bump dd trace to 1.2.1

* feat: Add major version notes

* fix: readme header size

* fix: Fix test using old method. Describe change in changes list

* fix: use tracer instead of correlation ids

* feat: Add the profiler

* fix: remove debug

* feat: Remove profiling comment line

* feat: Go to ddtrace 1.4. Conditionally import profiler.

* fix: remove duplicate declaration of profiling_env_var

* feat: Black, with the right version

* feat: Readme on profiler beta period

* fix: Remove dev changes used to package dd-trace locally

* feat: Remove == from if True

* feat: Bump layer size maximums

* feat: Remove python36 integration tests, as we can no longer create stacks with this version of python

* feat: Update snapshots

* feat: More python 3.6 deprecation

* feat: Readme update - dropping python36

feat: Replace list with set (DataDog#236)

Update Dependencies (DataDog#218)

* update dependencies

* empty commit to trigger ci

Co-authored-by: jcstorms1 <jcstorms1@users.noreply.github.com>
Co-authored-by: AJ Stuyvenberg <astuyve@gmail.com>

Use .get to avoid keyError issues (DataDog#226)

[SLS-2141] Fix `keyError` issue when creating inferred span (DataDog#223

)

* Use .get to access dict keys
* Bump version for black to 22.3.0
* Update snapshots