[Makefile] Add a no-op make setup.

Author: lgarron

Makefile

@@ -37,6 +37,10 @@ format:
 	${CD_TEST_SIMD} && cargo clippy --workspace --all-targets --fix --allow-dirty -- --deny warnings
 	${CD_TEST_SIMD} && cargo fmt
 
+.PHONY: setup
+setup:
+	# no-op for now
+
 RM_RF = bun -e 'process.argv.slice(1).map(p => process.getBuiltinModule("node:fs").rmSync(p, {recursive: true, force: true, maxRetries: 5}))' --
 
 .PHONY: clean