Add extension contract tests #6115

Job	Run time
detect-changes	10s
lint / lint	1m 46s
home-view-unit-tests / test	53s
extension-contract-tests / test	20s
connect-contract-tests / validate-fixtures	17s
build / build	2m 9s
connect-contract-tests / contract-tests	1m 3s
vscode / native (windows-latest)	4m 51s
vscode / native (macos-latest)	2m 17s
vscode / native (ubuntu-24.04-arm)	2m 49s
generate-licenses / license-check	1m 58s
agent / native (windows-11-arm)	5m 24s
agent / native (macos-latest)	2m 27s
vscode / native (ubuntu-latest)	1m 35s
vscode / native (windows-11-arm)	11m 8s
agent / native (windows-latest)	2m 55s
agent / native (ubuntu-24.04-arm)	4m 46s
agent / native (ubuntu-latest)	4m 53s
package / vscode	5m 21s
archive / archive	55s
upload / upload	1m 12s
e2e / e2e (release)	15m 55s
e2e / e2e (2023.03.0)	16m 53s
e2e / e2e (2025.03.0)	14m 50s
e2e / e2e (preview)	13m 40s
	2h 0m 27s

Provide feedback