Run Linux apps from Docker #636

# to view logs

Job	Run time
Pre-commit Checks / Pre-commit Checks	17s
Install Briefcase (main)	31s
Install Briefcase (PR Repo & Ref)	35s
Verify Docs Build	0s
Install Briefcase (PR Repo & Ref (irregular))	34s
Install Briefcase (refs/tags/v40.0.5)	33s
Install Briefcase (refs/heads/v40.0.5)	37s
Install Briefcase (refs/pull/v40.0.5)	34s
Create Package (briefcase) / Create Python Package	1m 7s
Create Package (gbulb) / Create Python Package	45s
Create Package (rubicon-objc) / Create Python Package	39s
Create Package (toga) / Create Python Package	58s
Pre-commit (briefcase) / Pre-commit Checks	38s
Pre-commit (gbulb) / Pre-commit Checks	18s
Pre-commit (Python-support-testbed) / Pre-commit Checks	13s
Pre-commit (toga) / Pre-commit Checks	48s
Pre-commit (rubicon-objc) / Pre-commit Checks	19s
Verify Linux (ppb) / Verify App Build	1m 39s
Verify Linux (pygame) / Verify App Build	7m 30s
Verify Linux (pyside6) / Verify App Build	13m 56s
Verify Linux (toga) / Verify App Build	11m 33s
	44m 4s

Provide feedback