chore: revert ignoreDeprecations to "6.0" (required for TS6 node10 deprecation)

Author: tyler-reitz

tsconfig.json

@@ -22,7 +22,7 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "moduleResolution": "node",
-    "ignoreDeprecations": "5.0",
+    "ignoreDeprecations": "6.0",
     // transpile JSX to React.createElement
     "jsx": "react",
     // interop between ESM and CJS modules. Recommended by TS