Add open AppHost source action to VS Code extension #16041

Job	Run time
Prepare for CI	15s
Tests / Setup for tests	1s
Tests / Run VS Code extension tests (Windows)	1s
Tests / Build native CLI archive (Linux) / Build CLI (ubuntu-latest)	1s
Tests / Build native CLI archive (Windows ARM64) / Build CLI (windows-11-arm)	1s
Tests / Java SDK Unit Tests / Java SDK (ubuntu-latest)	1m 46s
Tests / Build native CLI archive (Windows) / Build CLI (windows-latest)	1m 46s
Tests / Build native CLI archive (macOS) / Build CLI (macos-latest)	1m 46s
Tests / Build packages / Build packages	1m 46s
Tests / TypeScript SDK Unit Tests / TypeScript SDK Tests Job	1s
Tests / matrix.shortname	0s
Tests / matrix.shortname	0s
Tests / matrix.shortname	0s
Tests / matrix.shortname	0s
Tests / matrix.shortname	0s
Tests / Polyglot SDK Validation	0s
Tests / Final Test Results	25s
Tests / matrix.shortname	-1s
Tests / Aspire CLI Starter Validation (${{ matrix.os.name }})	1s
Final Results	2s
	7m 51s

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