Fixes the following issue when using the published npm version:
Module build failed (from ./node_modules/gatsby/dist/utils/babel-loader.js):
SyntaxError: /Users/ulrich.herzkamp/projects/blog/node_modules/gatsby-plugin-google-gtag-cookieconsent/node_modules/minimatch/dist/cjs/ast.js: Class private methods are not
enabled. Please add `@babel/plugin-transform-private-methods` to your configuration.
Fixes the following issue when using the published npm version: