Update eslint dependencies.

Author: davidlehn

package.json

@@ -55,8 +55,8 @@
     "core-js": "^2.6.5",
     "cors": "^2.7.1",
     "cross-env": "^5.2.0",
-    "eslint": "^6.7.2",
-    "eslint-config-digitalbazaar": "^2.0.1",
+    "eslint": "^6.8.0",
+    "eslint-config-digitalbazaar": "^2.3.0",
     "express": "^4.16.4",
     "fs-extra": "^8.1.0",
     "join-path-js": "0.0.0",