Save meeting url to metadata of bookings and add it to webhook payload

[CarinaWolli]

What does this PR do?

Adds new metadata column to booking model to save the meeting URL. Also adds the meeting URL to webhook payload.

Webhook payload for booking created and rescheduled:

With Cal Video link:

With Google Meet link:

Fixes #5518

Environment: Staging(main branch)

How should this be tested?

• Book an event type with a video call app as a location (Cal Video, Google Meet, Zoom, ...)
• Check database if videoCallUrl is saved in metadata
• Created a webhook and test if it returns the video call data when it is triggered

[vercel]

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Name	Status	Preview	Updated
cal	✅ Ready (Inspect)	Visit Preview	Dec 15, 2022 at 9:45PM (UTC)

[zomars]

@CarinaWolli we need to update the test snapshot:

[CarinaWolli]

@CarinaWolli we need to update the test snapshot:

@zomars I have updated them, but they are still failing. I compared the actual and expected test result file and they look identical to me. Do you know how to fix that?

[zomars]

@CarinaWolli we need to update the test snapshot:

@zomars I have updated them, but they are still failing. I compared the actual and expected test result file and they look identical to me. Do you know how to fix that?

Run test with yarn e2e -u and commit the updated file

[zomars]

Left some comments

[zomars]

Solved conflicts and ready to go