chore: remove unused coveralls dep

Signed-off-by: dhmlau <[email protected]>

Author: dhmlau

package-lock.json

@@ -48,7 +48,6 @@
     "@commitlint/config-conventional": "^19.8.1",
     "async": "^3.2.6",
     "colors": "^1.4.0",
-    "coveralls": "^3.1.1",
     "diff": "^8.0.2",
     "doctoc": "^2.2.1",
     "duplexer": "^0.1.2",