chore: bump @metamask/keyring-api to ^3.0.0 (#344)

Author: mikesposito

package.json

@@ -48,7 +48,7 @@
     "@metamask/eth-hd-keyring": "^7.0.1",
     "@metamask/eth-sig-util": "^7.0.0",
     "@metamask/eth-simple-keyring": "^6.0.1",
-    "@metamask/keyring-api": "^2.0.0",
+    "@metamask/keyring-api": "^3.0.0",
     "@metamask/obs-store": "^9.0.0",
     "@metamask/utils": "^8.2.0"
   },