update dependencies (#6267)

Signed-off-by: hongming <coder.scala@gmail.com>

vendor/go.mongodb.org/mongo-driver/bson/primitive/decimal.go

@@ -70,7 +70,6 @@ func (d Decimal128) String() string {
 		// Bits: 1*sign 2*ignored 14*exponent 111*significand.
 		// Implicit 0b100 prefix in significand.
 		exp = int(d.h >> 47 & (1<<14 - 1))
-		//high = 4<<47 | d.h&(1<<47-1)
 		// Spec says all of these values are out of range.
 		high, low = 0, 0
 	} else {
@@ -152,21 +151,17 @@ func (d Decimal128) BigInt() (*big.Int, int, error) {
 		// Bits: 1*sign 2*ignored 14*exponent 111*significand.
 		// Implicit 0b100 prefix in significand.
 		exp = int(high >> 47 & (1<<14 - 1))
-		//high = 4<<47 | d.h&(1<<47-1)
 		// Spec says all of these values are out of range.
 		high, low = 0, 0
 	} else {
 		// Bits: 1*sign 14*exponent 113*significand
 		exp = int(high >> 49 & (1<<14 - 1))
-		high = high & (1<<49 - 1)
+		high &= (1<<49 - 1)
 	}
 	exp += MinDecimal128Exp
 
 	// Would be handled by the logic below, but that's trivial and common.
 	if high == 0 && low == 0 && exp == 0 {
-		if posSign {
-			return new(big.Int), 0, nil
-		}
 		return new(big.Int), 0, nil
 	}
 
@@ -328,6 +323,7 @@ func ParseDecimal128(s string) (Decimal128, error) {
 		return dErr(s)
 	}
 
+	// Parse the significand (i.e. the non-exponent part) as a big.Int.
 	bi, ok := new(big.Int).SetString(intPart+decPart, 10)
 	if !ok {
 		return dErr(s)
@@ -354,12 +350,25 @@ var (
 
 // ParseDecimal128FromBigInt attempts to parse the given significand and exponent into a valid Decimal128 value.
 func ParseDecimal128FromBigInt(bi *big.Int, exp int) (Decimal128, bool) {
-	//copy
+	// copy
 	bi = new(big.Int).Set(bi)
 
 	q := new(big.Int)
 	r := new(big.Int)
 
+	// If the significand is zero, the logical value will always be zero, independent of the
+	// exponent. However, the loops for handling out-of-range exponent values below may be extremely
+	// slow for zero values because the significand never changes. Limit the exponent value to the
+	// supported range here to prevent entering the loops below.
+	if bi.Cmp(zero) == 0 {
+		if exp > MaxDecimal128Exp {
+			exp = MaxDecimal128Exp
+		}
+		if exp < MinDecimal128Exp {
+			exp = MinDecimal128Exp
+		}
+	}
+
 	for bigIntCmpAbs(bi, maxS) == 1 {
 		bi, _ = q.QuoRem(bi, ten, r)
 		if r.Cmp(zero) != 0 {