fix: GCal shared calendars write if enabled

[joeauyeung]

What does this PR do?

This PR allows users to select GCal calendars as the destination calendar if they are either the owner or have permission to write on it.

Fixes # (issue)

Requirement/Documentation

• If there is a requirement document, please, share it here.
• If there is ab UI/UX design document, please, share it here.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How should this be tested?

• Connect a Google account with a shared calendar with write access
• When selecting a destination calendar, that shared calendar should now be an option
• Create an event, the event should be created on the shared calendar

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

Checklist

• I haven't added tests that prove my fix is effective or that my feature works
• I haven't checked if new and existing unit tests pass locally with my changes

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Name	Status	Preview	Comments	Updated (UTC)
api	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 1:49am
cal-demo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 1:49am
dev	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 1:49am
ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 1:49am

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
cal	⬜️ Ignored (Inspect)			Aug 18, 2023 1:49am

[github-actions]

Thank you for following the naming conventions! 🙏

[github-actions]

📦 Next.js Bundle Analysis for @calcom/web

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[deploysentinel]

Current Playwright Test Results Summary

✅ 116 Passing - ⚠️ 1 Flaky

Run may still be in progress, this comment will be updated as current testing workflow or job completes...

(Last updated on 08/18/2023 01:49:37am UTC)

Run Details

Running Workflow PR Update on Github Actions

Commit: 651df04

Started: 08/18/2023 01:48:31am UTC

⚠️ Flakes

📄   packages/embeds/embed-core/playwright/tests/action-based.e2e.ts • 1 Flake

Test Case Results

Test Case	Last 7 days Failures	Last 7 days Flakes
Popup Tests should be able to reschedule Retry 1 • Initial Attempt	1.92% (5) 5 / 260 runs failed over last 7 days	98.08% (255) 255 / 260 runs flaked over last 7 days

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View Detailed Build Results

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[alwaysmeticulous]

🤖 Meticulous spotted visual differences in 59 of 171 screens tested: view and approve differences detected.

_{Last updated for commit 651df04. This comment will update as new commits are pushed.}