bump ddtrace to take advantage of new aws sdk request span tags & reg…

[zARODz11z]

What does this PR do?

bump dd trace, regen lock file

Motivation

To match ddtrace 1.15.0 in the RC of datadog-python layer
SLS-3237
so we can get benefits from this release
https://github.com/DataDog/dd-trace-py/releases/tag/v1.14.0#:~:text=aws%3A%20Adds%20span%20tags%20for%20consistency%20with%20tags%20collected%20by%20Datadog%20for%20AWS%20metrics%20and%20logs.

Testing Guidelines

Made a RC in sls sandbox in us-east-1. Specifically datadog-python38 v5 on self monitoring
Additionally this is to make sure the integration tests run on the version of ddtrace that will be utilized in the release.

Additional Notes

Types of Changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog
• This PR passes the integration tests (ask a Datadog member to run the tests)