[Deps] update browserify-sign, pbkdf2

Author: ljharb

package.json

@@ -24,14 +24,13 @@
 	},
 	"dependencies": {
 		"browserify-cipher": "^1.0.1",
-		"browserify-sign": "^4.2.3",
+		"browserify-sign": "^4.2.5",
 		"create-ecdh": "^4.0.4",
 		"create-hash": "^1.2.0",
 		"create-hmac": "^1.1.7",
 		"diffie-hellman": "^5.0.3",
-		"hash-base": "~3.0.5",
 		"inherits": "^2.0.4",
-		"pbkdf2": "^3.1.3",
+		"pbkdf2": "^3.1.5",
 		"public-encrypt": "^4.0.3",
 		"randombytes": "^2.1.0",
 		"randomfill": "^1.0.4"