CI: Build examples in parallel on pull requests #125

Job	Run time
Build for native target (macos-15, Xcode_26.0.1)	1m 46s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	1m 44s
check-bridgejs-generated	1m 44s
format	37s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	1m 46s
build-example (Embedded)	1m 46s
build-example (OffscrenCanvas)	1m 46s
build-example (Multithreading)	1m 47s
prettier	13s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	1m 45s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	1m 36s
build-example (Basic)	1m 46s
build-example (PlayBridgeJS)	1m 47s
build-example (ActorOnWebWorker)	1m 45s
build-examples-deploy	-1s
deploy-examples	-1s
build-examples	1s
	21m 47s

Provide feedback