Add language autocomplete for supported languages #487

Job	Run time
charts-tests / Chart Data Extractor - Build and test	29s
build-template / Build E2B Template	31s
performance-tests / Performance tests	59s
python-sdk / Python SDK - Build and test	58s
js-sdk / JS SDK - Build and test	1m 5s
cleanup-build-template / Cleanup Build Template	10s
	4m 12s

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