Bump @istanbuljs/schema from ^0.1.2 to ^0.1.3

[achhapolia10]

• Version: 14.18.1
• Platform: Linux amd64

Having @istanbuljs/schema version 0.1.2 already installed by some other dependency results in the error Cannot find module '@istanbuljs/schema/default-extension' error.
This happens because ^0.1.2 is already satisfied. And 0.1.2 doesn't have the default-extension.js module in it.

This can be solved by simply incrementing the patch number in the package.json.