added healthcheck middleware

[lme-nca]

⚠️ Note on feature completeness ⚠️

We are narrowing the scope of acceptable enhancements to DefectDojo in preparation for v3. Learn more here:
https://github.com/DefectDojo/django-DefectDojo/blob/master/readme-docs/CONTRIBUTING.md

Description

Describe the feature / bug fix implemented by this PR.
If this is a new parser, the parser guide may be worth (re)reading.

Test results

Ideally you extend the test suite in tests/ and dojo/unittests to cover the changed in this PR.
Alternatively, describe what you have and haven't tested.

Documentation

Please update any documentation when needed in the documentation folder)

Checklist

This checklist is for your information.

• Make sure to rebase your PR against the very latest dev.
• Features/Changes should be submitted against the dev.
• Bugfixes should be submitted against the bugfix branch.
• Give a meaningful name to your PR, as it may end up being used in the release notes.
• Your code is flake8 compliant.
• Your code is python 3.11 compliant.
• If this is a new feature and not a bug fix, you've included the proper documentation in the docs at https://github.com/DefectDojo/django-DefectDojo/tree/dev/docs as part of this PR.
• Model changes must include the necessary migrations in the dojo/db_migrations folder.
• Add applicable tests to the unit tests.
• Add the proper label to categorize your PR.

Extra information

Please clear everything below when submitting your pull request, it's here purely for your information.

Moderators: Labels currently accepted for PRs:

• Import Scans (for new scanners/importers)
• enhancement
• performance
• feature
• bugfix
• maintenance (a.k.a chores)
• dependencies
• New Migration (when the PR introduces a DB migration)
• settings_changes (when the PR introduces changes or new settings in settings.dist.py)

Contributors: Git Tips

Rebase on dev branch

If the dev branch has changed since you started working on it, please rebase your work after the current dev.

On your working branch mybranch:

git rebase dev mybranch

In case of conflict:

 git mergetool
 git rebase --continue

When everything's fine on your local branch, force push to your myOrigin remote:

git push myOrigin --force-with-lease

To cancel everything:

git rebase --abort

Squashing commits

git rebase -i origin/dev

• Replace pick by fixup on the commits you want squashed out
• Replace pick by reword on the first commit if you want to change the commit message
• Save the file and quit your editor

Force push to your myOrigin remote:

git push myOrigin --force-with-lease