* chore: 🤖 Upgrade `addons/core` to Ember 4.12.2
Upgrade `addons/core` to Ember 4.12.2
✅ Closes: ICU-11341
* refactor: 💡 testing updating plugin-proposal-decorators version
Update `@babel/plugin-proposal-decorators` to latest version.
* refactor: 💡 testing legacy plugin-proposa-decorators version
Testin `legacy` version for `plugin-proposal-decorators` plugin
* refactor: 💡 testing plugin-proposal-decorators
Testing `@babel/plugin-proposal-decorators`
* refactor: 💡 Revert @babel/exlint-parser to previous version
Revert `@babel/eslint-parser` to use version 2018 EcmaScript version
until further research is done on latest versions
* Update package.json
put @babel/core back into `devDependencies`
* refactor: 💡 testing linging changes
Pushed ember-tempalate-lint, prettier, and ember template lint plugin
for prettier to latest versions to test why CI builds are not passing.
✅ Closes: https://hashicorp.atlassian.net/browse/ICU-11341
Devon Anderson
