all: update license information (#16089)

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accounts/abi/pack_test.go

accounts/abi/unpack.go

accounts/abi/unpack_test.go

build/update-license.go

cmd/ethkey/inspect.go

cmd/ethkey/message_test.go

cmd/ethkey/run_test.go

cmd/evm/json_logger.go

cmd/p2psim/main.go

cmd/swarm/run_test.go

cmd/swarm/upload_test.go

common/fdlimit/fdlimit_freebsd.go

common/fdlimit/fdlimit_test.go

common/fdlimit/fdlimit_unix.go

common/fdlimit/fdlimit_windows.go

core/vm/contracts_test.go

core/vm/instructions_test.go

eth/api_test.go