* Update browserslist

* Add browserslistrc

* ember-cli-update --to 3.26, fix conflicts

* Run codemodes that start with ember-*

* More codemods - before cp*

* More codemods (curly data-test-*)

* WIP ember-basic-dropdown template errors

* updates ember-basic-dropdown and related deps to fix build issues

* updates basic dropdown instances to new version API

* updates more deps -- ember-template-lint is working again

* runs no-implicit-this codemod

* creates and runs no-quoteless-attributes codemod

* runs angle brackets codemod

* updates lint:hbs globs to only touch hbs files

* removes yield only templates

* creates and runs deprecated args transform

* supresses lint error for invokeAction on LinkTo component

* resolves remaining ambiguous path lint errors

* resolves simple-unless lint errors

* adds warnings for deprecated tagName arg on LinkTo components

* adds warnings for remaining curly component invocation

* updates global template lint rules

* resolves remaining template lint errors

* disables some ember specfic lint rules that target pre octane patterns

* js lint fix run

* resolves remaining js lint errors

* fixes test run

* adds npm-run-all dep

* fixes test attribute issues

* fixes console acceptance tests

* fixes tests

* adds yield only wizard/tutorial-active template

* fixes more tests

* attempts to fix more flaky tests

* removes commented out settled in transit test

* updates deprecations workflow and adds initializer to filter by version

* updates flaky policies acl old test

* updates to flaky transit test

* bumps ember deps down to LTS version

* runs linters after main merge

* fixes client count tests after bad merge conflict fixes

* fixes client count history test

* more updates to lint config

* another round of hbs lint fixes after extending stylistic rule

* updates lint-staged commands

* removes indent eslint rule since it seems to break things

* fixes bad attribute in transform-edit-form template

* test fixes

* fixes enterprise tests

* adds changelog

* removes deprecated ember-concurrency-test-waiters dep and adds @ember/test-waiters

* flaky test fix
Co-authored-by: hashishaw <cshaw@hashicorp.com>