[google-apps-script] Calendar API: Adding tests and missing transparency API. CardService: Adding missing SelectionInput enum value

[gSriviere]

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CalendarEvent / EventTransparency:
https://developers.google.com/apps-script/reference/calendar/calendar-event
https://developers.google.com/apps-script/reference/calendar/event-transparency

CardService / SelectionInputType enum:
https://developers.google.com/apps-script/reference/card-service/selection-input-type

[typescript-bot]

@gSriviere Thank you for submitting this PR!

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1 package in this PR

• google-apps-script — on npm, on unpkg
  • owner-approval: @jpoehnelt

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---

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[typescript-bot]

🔔 @jpoehnelt @sqrrrl @PierrickVoulet @vinay-google — please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

[DangerBotOSS]

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[typescript-bot]

@gSriviere: Everything looks good here. I am ready to merge this PR (at 94025c6) on your behalf whenever you think it's ready.

If you'd like that to happen, please post a comment saying:

Ready to merge

and I'll merge this PR almost instantly. Thanks for helping out! ❤️

(@jpoehnelt, @sqrrrl, @PierrickVoulet, @vinay-google: you can do this too.)

[gSriviere]

Ready to merge