Merge pull request mitre#2874 from mitre/magma

Magma

Prep 42 (mitre#2775)

* Pin submodules

* Bump version: 4.2.0

Merge pull request mitre#2642 from Morpheme777/fix-log-abilityid

fix unreadable log messages referencing to abliity_id

Merge pull request mitre#2606 from mitre/confetti-fix

Remove reference to non-existent map file

Merge pull request mitre#2459 from mitre/websockets-logging

Suppress websockets logging

Merge pull request mitre#2373 from heatonk/VIRTS-3055-@2329-Issue

Fix event_logs download functionality

Merge pull request mitre#2305 from mitre/bleepbop/VIRTS-2881/health-v…

…2-api-pytest

[VIRTS-2881] Health API v2 Pytests

Merge pull request mitre#2115 from mitre/wbooth-patch-1

Update version.py

Update README.md

Update README.md