chore(deps): update dependency babel-plugin-istanbul to v5.2.0 (#658)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

Diff for: package-lock.json

@@ -54,7 +54,7 @@
     "@babel/register": "^7.0.0",
     "@istanbuljs/nyc-config-babel": "2.1.1",
     "axios": "0.19.0",
-    "babel-plugin-istanbul": "5.1.4",
+    "babel-plugin-istanbul": "5.2.0",
     "chai": "^4.1.2",
     "codecov.io": "0.1.6",
     "cz-conventional-changelog-default-export": "0.0.0-semantically-released.1",