Use S3 for fastlane match

[crazytonyli]

What says in the title. You can run bundle exec fastlane ios update_certs_and_profiles locally to verify this change.

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 24.9. This milestone is due in less than 4 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

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	App Name	WordPress Alpha
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	Build Number	pr23186-a701f3e
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	App Center Build	WPiOS - One-Offs #9866

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📲 You can test the changes from this Pull Request in Jetpack Alpha by scanning the QR code below to install the corresponding build.

	App Name	Jetpack Alpha
	Configuration	Release-Alpha
	Build Number	pr23186-a701f3e
	Version	24.8
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	Commit	a701f3e
	App Center Build	jetpack-installable-builds #8914

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[mokagio]

We'll need to add s3_region to address a runtime warning. See Automattic/simplenote-macos#1150 (comment)

Suggested change

	s3_bucket: 'a8c-fastlane-match',
	s3_bucket: 'a8c-fastlane-match',
	s3_region: 'us-east-2',

[mokagio]

Similar to the WooCommerce iOS review, woocommerce/woocommerce-ios#12692, what do you think of taking the chance to use app_store_connect_api_key like in Pocket Casts Desktop

Of course, those are "refactors" as they don't change the behavior. Approving to unblock.