IP-241 - Implement pre-commit CI/CD.

[owenlittlejohns]

Description

This PR is to add pre-commit.ci to the Swath Projector, which will automatically run our pre-commit hooks for each PR. I've configured it to not automatically add a new commit with the changes, because it feels better to still have a human in the loop to review those changes.

Steps to set this up:

1. Log in to pre-commit.ci.
2. Select repositories for which I (or the person doing this) is an administrator, and add them to pre-commit.ci.
3. Update the .pre-commit-config.yaml to add the ci section.
4. Feel pleased about life.

Jira Issue ID

N/A

Local Test Steps

N/A

PR Acceptance Checklist

• Jira ticket acceptance criteria met.
• CHANGELOG.md updated to include high level summary of PR changes.
• docker/service_version.txt updated if publishing a release.
• Tests added/updated and passing.
• Documentation updated (if needed).

[flamingbear]

chef's kiss.