Limit tree-sitter project indexing memory #631

Job	Run time
build-freebuff	1m 8s
build-and-smoke-freebuff-windows	2m 26s
e2e-agent-startup	2m 26s
e2e-ads-behavior	1m 14s
e2e-terminal-command	51s
e2e-version	54s
e2e-help-command	1m 9s
e2e-startup	1m 21s
e2e-code-edit	58s
e2e-slash-commands	1m 3s
	13m 30s

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