Bump elliptic from 6.5.0 to 6.5.3 in /example

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.0 to 6.5.3.
- [Release notes](https://github.com/indutny/elliptic/releases)
- [Commits](indutny/elliptic@v6.5.0...v6.5.3)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

example/yarn.lock

@@ -2417,12 +2417,7 @@ bluebird@^3.5.5:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
   integrity sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
-  integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
-
-bn.js@^4.11.8:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.11.8, bn.js@^4.4.0:
   version "4.11.9"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
   integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
@@ -4020,20 +4015,7 @@ electron-to-chromium@^1.3.236, electron-to-chromium@^1.3.564:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.564.tgz#e9c319ae437b3eb8bbf3e3bae4bead5a21945961"
   integrity sha512-fNaYN3EtKQWLQsrKXui8mzcryJXuA0LbCLoizeX6oayG2emBaS5MauKjCPAvc29NEY4FpLHIUWiP+Y0Bfrs5dg==
 
-elliptic@^6.0.0:
-  version "6.5.0"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.0.tgz#2b8ed4c891b7de3200e14412a5b8248c7af505ca"
-  integrity sha512-eFOJTMyCYb7xtE/caJ6JJu+bhi67WCYNbkGSknu20pmM8Ke/bqOfdnZWxyoGN26JgfxTbXrsCkEw4KheCT/KGg==
-  dependencies:
-    bn.js "^4.4.0"
-    brorand "^1.0.1"
-    hash.js "^1.0.0"
-    hmac-drbg "^1.0.0"
-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
-    minimalistic-crypto-utils "^1.0.0"
-
-elliptic@^6.5.0, elliptic@^6.5.3:
+elliptic@^6.0.0, elliptic@^6.5.0, elliptic@^6.5.3:
   version "6.5.3"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.3.tgz#cb59eb2efdaf73a0bd78ccd7015a62ad6e0f93d6"
   integrity sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==
@@ -10760,7 +10742,7 @@ resolve@1.x, resolve@^1.11.1, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.17.0:
     schema-utils "^1.0.0"
     semver "^5.7.1"
     semver-compare "^1.0.0"
-    serialize-javascript "^1.8.0"
+    serialize-javascript "^3.1.0"
     set-blocking "^2.0.0"
     set-value "^2.0.1"
     setimmediate "^1.0.5"
@@ -10890,7 +10872,7 @@ resolve@1.x, resolve@^1.11.1, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.17.0:
     y18n "^4.0.0"
     yallist "^3.0.3"
     yargs "^13.3.0"
-    yargs-parser "^10.1.0"
+    yargs-parser "^13.1.2"
 
 restore-cursor@^2.0.0:
   version "2.0.0"
@@ -11266,7 +11248,7 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
-serialize-javascript@^1.6.1, serialize-javascript@^1.8.0:
+serialize-javascript@^1.6.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.9.1.tgz#cfc200aef77b600c47da9bb8149c943e798c2fdb"
   integrity sha512-0Vb/54WJ6k5v8sSWN09S0ora+Hnr+cX40r9F170nT+mSkaxltoE/7R3OrIdBSUv1OoiobH1QoWQbCnAO+e8J1A==
@@ -11276,6 +11258,13 @@ serialize-javascript@^1.7.0:
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.8.0.tgz#9515fc687232e2321aea1ca7a529476eb34bb480"
   integrity sha512-3tHgtF4OzDmeKYj6V9nSyceRS0UJ3C7VqyD2Yj28vC/z2j6jG5FmFGahOKMD9CrglxTm3tETr87jEypaYV8DUg==
 
+serialize-javascript@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-3.1.0.tgz#8bf3a9170712664ef2561b44b691eafe399214ea"
+  integrity sha512-JIJT1DGiWmIKhzRsG91aS6Ze4sFUrYbltlkg2onR5OrnNM02Kl/hnY/T4FN2omvyeBbQmMJv+K4cPOpGzOTFBg==
+  dependencies:
+    randombytes "^2.1.0"
+
 serialize-javascript@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-4.0.0.tgz#b525e1238489a5ecfc42afacc3fe99e666f4b1aa"
@@ -13164,6 +13153,14 @@ yargs-parser@^13.1.1:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+yargs-parser@^13.1.2:
+  version "13.1.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"
+  integrity sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
 yargs@12.0.2:
   version "12.0.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.2.tgz#fe58234369392af33ecbef53819171eff0f5aadc"