VCIO-next: Advisory model migration Batch 1

[TG1999]

• Github API
• NVD
• Vulnrichment
• NPM
• Apache HTTPD
• Pysec
• Pypa
• Gitlab
• Github OSV

[TG1999]

This is done now!

PRs for references:
#1866

To test this:
Set up Vulnerablecode on your system locally and run a new V2 importer pipeline for example:

./manage.py import --l

You will be able to see

nvd_importer_v2
github_importer_v2
nodejs_security_wg
vulnrichment_importer_v2
apache_httpd_importer_v2
pypa_importer_v2
gitlab_importer_v2
pysec_importer_v2

All of these importers are migrated to V2 and are ready to import Advisory level info