Limit tree-sitter project indexing memory #6558

Job	Run time
build-and-check	3m 6s
test-integration-packages/billing	1m 7s
test-integration-common	45s
test-integration-packages/internal	1m 13s
test-integration-cli	44s
test-integration-sdk	1m 20s
test-integration-packages/agent-runtime	45s
test-integration-web	39s
test-packages/agent-runtime	56s
test-common	47s
test-packages/billing	47s
test-packages/internal	49s
test-sdk	54s
test-web	1m 23s
test-cli	1m 0s
test-.agents	48s
	17m 3s

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