unittest update, fix unittest failed case for TestEcdsaPublicKey

[edwardramsey]

Type of change

• Test update

Description

modify file: bccsp/sw/ecdsa_test.go reason: with go version 1.19, x509.MarshalPKIXPublicKey -> marshalPublicKey -> elliptic.Marshal will panic if point not on curve because of function new function panicIfNotOnCurve(curve, x, y)

func Marshal(curve Curve, x, y *big.Int) []byte {
	panicIfNotOnCurve(curve, x, y)
        // ...
}

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