build(deps): bump serde from 1.0.188 to 1.0.189 #146

Job	Run time
test	0s
check	0s
cargo-test-sbf (token/program)	14m 46s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	26m 23s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	18m 35s
cargo-test-sbf (token-upgrade/program)	12m 12s
cargo-test-sbf (feature-proposal/program)	15m 30s
cargo-test-sbf (governance/addin-mock/program, governance/program)	24m 43s
cargo-test-sbf (memo/program)	19m 56s
cargo-test-sbf (name-service/program)	14m 11s
cargo-test-sbf (stake-pool/program)	21m 9s
cargo-test-sbf (single-pool/program)	20m 17s
	3h 7m 42s

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