Update UI tests module to WDIO 8

[AlexRRR]

Update UI tests module to WDIO 8

Motivation and Context

Update UI tests module dependencies

Types of changes

• NodeJS version updated to latest LTS release 18.04.2
• Updated WDIO to version 8
• the wdio/sync module is no longer supported, the recommendation is to change all calls to async code https://webdriver.io/docs/async-migration/ which means a lot of async/await peppered through the codebase
• requests library used to do http calls is deprecated since 2019, replaced all calls with axios.
• Transition from CommonJS to ESM style imports https://webdriver.io/blog/2022/12/01/webdriverio-v8-released/#commonjs-to-esm-transition

🧪 tested also the forms spec used for e2e with an environment with OOTB content.
sites spec was also tested, but requires an environment with specific site configuration (worked with a wknd site)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[bisswanger]

Looks good, tested locally on my M1 towards a cloud instance

[AlexRRR]

pinging @vladbailescu . It seems you can help getting these changes merged.