chore: bump buffer from 5.7.0 to 6.0.1 in /web3.js (#13415)

Bumps [buffer](https://github.com/feross/buffer) from 5.7.0 to 6.0.1.
- [Release notes](https://github.com/feross/buffer/releases)
- [Commits](https://github.com/feross/buffer/compare/v5.7.0...v6.0.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web3.js/package-lock.json

@@ -5290,6 +5290,18 @@
         "superstruct": "^0.8.3",
         "tweetnacl": "^1.0.0",
         "ws": "^7.0.0"
+      },
+      "dependencies": {
+        "buffer": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+          "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
+          "dev": true,
+          "requires": {
+            "base64-js": "^1.3.1",
+            "ieee754": "^1.1.13"
+          }
+        }
       }
     },
     "@szmarczak/http-timer": {
@@ -7283,12 +7295,12 @@
       "dev": true
     },
     "buffer": {
-      "version": "5.7.0",
+      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.1.tgz",
-      "integrity": "sha512-cd+5r1VLBwUqTrmnzW+D7ABkJUM6mr7uv1dv+6jRw4Rcl7tFIFHDqHPL98LhpGFn3dbAt3gtLxtrWp4m1kFrqg==",
+      "integrity": "sha512-rVAXBwEcEoYtxnHSO5iWyhzV/O1WMtkUYWlfdLS7FjU4PnSJJHEfHXi/uHPI5EwltmOA794gN3bm3/pzuctWjQ==",
       "requires": {
         "base64-js": "^1.3.1",
-        "ieee754": "^1.1.13"
+        "ieee754": "^1.2.1"
       }
     },
     "buffer-es6": {

web3.js/package.json

@@ -76,7 +76,7 @@
     "@babel/runtime": "^7.3.1",
     "bn.js": "^5.0.0",
     "bs58": "^4.0.1",
-    "buffer": "^5.4.3",
+    "buffer": "^6.0.1",
     "buffer-layout": "^1.2.0",
     "crypto-hash": "^1.2.2",
     "esdoc-inject-style-plugin": "^1.0.0",