feat: Use self hosted GitHub actions runners

[jpmcb]

Description

Uses GitHub action self hosted runners. These are slightly more powerful runners that should hopefully make it so actions are less painful and the e2e tests don't flake as much.

Related Tickets & Documents

Related to: #3946

Tier (staff will fill in)

• [ ] Tier 1
• [ ] Tier 2
• [ ] Tier 3
• [x] Tier 4

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