feat: add yarn 1 (classic) examples

[MikeMcC399]

This PR is related to issue #799 "Examples for Yarn 1 (Classic) and Yarn Berry / Modern (Version 2 and later)".

It provides new examples for Yarn Classic under the directories:

• examples/yarn-classic
• examples/v9/yarn-classic

together with a new corresponding workflow

• example-yarn-classic.yml

an update to the following script to automate maintenance updates to cypress@latest

• scripts/update-cypress-latest-other.sh

an update to cover both Yarn Classic (v1) and Yarn Modern (V2 and later) in the following file

• .gitignore

and an update to

• README.md

Verification

Local

nvm use 18 # for node v18.15.0
npm install yarn -g
yarn -v

expect 1.22.19

Yarn Classic with Cypress 9.7.0

From root of repository ...

cd examples/v9/yarn-classic
yarn
yarn test

Confirm Cypress test passes.

Yarn Classic with Cypress 12.7.0

From root of repository ...

cd examples/yarn-classic
yarn
yarn test

Update script

From root of repository ...

cd examples/yarn-classic
yarn add cypress@12.0.0 -D # install older version
cd ../..
npm run update:cypress
cd examples/yarn-classic
yarn list --pattern cypress

Confirm that Cypress has been updated to latest version (12.7.0).

GitHub

Manually run the workflow

• example-yarn-classic.yml

and confirm success.

[MikeMcC399]

All manual tests pass.

I will follow up this PR with a Yarn Modern example PR. It is already prepared and needs this Yarn 1 (Classic) PR merging first. (See branch https://github.com/MikeMcC399/github-action/tree/feat/yarn-modern for preview.)

[AtofStryker]

@lmiller1990 do you mind taking a look at this one?

[lmiller1990]

Thanks!

[github-actions]

🎉 This PR is included in version 5.4.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[MikeMcC399]

• PR feat: add yarn berry / modern (version 2 and later) examples #838 follows on from this PR