v5: Update GitHub Actions to latest versions

• actions/checkout: v4 → v6
• actions/github-script: v7 → v8

v4: Remove PR labelling, improve README, update examples

Update README.md

v3: Fix default title and description

revert default title and description

v.2 Update default title and description

This release updates the default title and description to be more descriptive

It also changes the way the PR number is retrieved to fix the label addition to PRs

v.1 Update github actions versions

v1

update action versions