Add lint:yaml and update the package.json for Varbase Commerce (Merchandise) module with latest Drupal 9.3.x dev tools

Problem/Motivation

Standard check and linting tools are outdated.
And a new linting tool with yarn lint:yaml was added to Drupal core
#2591827: Add YAML linting to core coding standards checks

Very important to make sure that all .yml files are in the right format.
eslint-plugin-yml a good tool to lint with
Example: using not standard format
or check on any duplicate yaml elements

Proposed resolution

Add the yarn lint:yaml
and update all outdated check configs and the package.json file

Get Needed Yarn Development Dependencies
yarn install

Check Standards/Practice Coding And Linting

Check Drupal Standard And Practice Coding
Check Drupal standard and practice coding.
yarn phpcs

---

PHP Code Beautifier and Fixer
Fix many errors and warnings automatically.
yarn phpcbf

---

Linting YAML files
Check all .yml files with Drupal standard yaml format.
yarn lint:yaml

  "scripts": {
    "phpcs": "phpcs --standard=./.phpcs.xml .",
    "phpcbf": "phpcbf --standard=./.phpcs.xml .",
    "lint:yaml": "node ./node_modules/eslint/bin/eslint.js --config=.eslintrc.json --ext .yml ."
  },

Remaining tasks

• ✅ File an issue about this project
• ✅ Add lint:yaml and update packages in package.json
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ✅ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Release varbase_commerce-1.0.0-alpha1

User interface changes

• None

API changes

• None

Data model changes

• None