Bump elliptic from 6.5.4 to 6.6.1 (#836)

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.4 to 6.6.1.
- [Commits](https://github.com/indutny/elliptic/compare/v6.5.4...v6.6.1)

---
updated-dependencies:
- dependency-name: elliptic
  dependency-type: indirect
...

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package-lock.json

@@ -7286,9 +7286,9 @@
             "dev": true
         },
         "node_modules/elliptic": {
-            "version": "6.5.4",
-            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
-            "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+            "version": "6.6.1",
+            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.6.1.tgz",
+            "integrity": "sha512-RaddvvMatK2LJHqFJ+YA4WysVN5Ita9E35botqIYspQ4TkRAlCicdzKOjlyv/1Za5RyTNn7di//eEV0uTAfe3g==",
             "dev": true,
             "dependencies": {
                 "bn.js": "^4.11.9",
@@ -23561,9 +23561,9 @@
             "dev": true
         },
         "elliptic": {
-            "version": "6.5.4",
-            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
-            "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+            "version": "6.6.1",
+            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.6.1.tgz",
+            "integrity": "sha512-RaddvvMatK2LJHqFJ+YA4WysVN5Ita9E35botqIYspQ4TkRAlCicdzKOjlyv/1Za5RyTNn7di//eEV0uTAfe3g==",
             "dev": true,
             "requires": {
                 "bn.js": "^4.11.9",