Add local requirements

[aht007]

DESC

Common/lib cleanup PR removes the local.in requirements file which makes it necessary to install local requirements as separate step. This PR adds the local requirements installation step to Ansible task.
For context: openedx/edx-platform#30890
Sandbox link: https://aht007.sandbox.edx.org

Configuration Pull Request

Make sure that the following steps are done before merging:

• A SRE team member has approved the PR if it is code shared across multiple services and you don't own all of the services.
• Are you adding any new default values that need to be overridden when this change goes live? If so:
  • Update the appropriate internal repo (be sure to update for all our environments)
  • If you are updating a secure value rather than an internal one, file a SRE ticket with details.
  • Add an entry to the CHANGELOG.
• If you are making a complicated change, have you performed the proper testing specified on the Ops Ansible Testing Checklist? Adding a new variable does not require the full list (although testing on a sandbox is a great idea to ensure it links with your downstream code changes).
• Think about how this change will affect Open edX operators. Have you updated the wiki page for the next Open edX release?

[aht007]

@kdmccormick I am planning to merge this PR before common/lib PR goes out. This will make us safe to merge the common/lib PR without any issues and it wouldn't cause any issues with master branch of edx-platform as well.

[kdmccormick]

sounds good!

[UsamaSadiq]

edx-platform build pipeline facing issues right now due to a recent Ansible upgrade by the SRE team. We'll continue with the merge and deployment of the PR once the pipeline is fixed and running again.