Bump lodash from 4.17.23 to 4.18.1 in /examples/demo-apps/react-native/rnllama #1527

Job	Run time
test-arm / test-backend-linux (arm_tosa_fp, models) / linux-job	25m 23s
test-arm / test-backend-linux (arm_tosa_fp, operators) / linux-job	18m 41s
test-arm / test-backend-linux (arm_vgf_fp, models) / linux-job	27m 8s
test-arm / test-backend-linux (arm_vgf_fp, operators) / linux-job	17m 31s
test-arm / test-backend-macos	0s
test-arm / package-golden-artifacts	47s
	1h 29m 30s

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