Enhanced Jira integration

[visallard-scw]

Linking Jira tickets is cumbersome because :

• Tickets must be created and can't be linked
• Linked tickets cannot be modified or erased in the event of a mistake
• There's no API endpoint for Jira linking so they must be done one-by-one in the interface

This PR aims to address those issues. There's also a small modification to the authentication scheme of Jira to allow self-host users to use Personal Access Tokens instead of user/password or user/token credentials.

[guardrails]

⚠️ We detected 2 security issues in this pull request:

Insecure Processing of Data (2)

Docs	Details
💡	Title: Insecure HTTP redirect (Django), Severity: Low archerysec/jiraticketing/views.py Line 393 in 5eab6b8 return HttpResponseRedirect(reverse("dashboard:dashboard"))
💡	Title: Insecure HTTP redirect (Django), Severity: Low archerysec/jiraticketing/views.py Line 445 in 5eab6b8 return HttpResponseRedirect(reverse("dashboard:dashboard"))

More info on how to fix Insecure Processing of Data in Python.

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[anandtiwarics]

I'm going through the PR. It will merge once it reviewed.