[Woo POS] MVP Analytics: Card payment success event properties

[iamgabrielma]

Description

This PR it's a continuation of #15138, and adds the following missing properties to pos_card_present_collect_payment_success event:

milliseconds_since_order_creation_success
milliseconds_since_reader_ready_to_collect_payment
milliseconds_since_card_tapped
checkout_tap_count

In order to track these we follow the same design that the existing milliseconds_since_customer_interaction_started property, as we need to keep track of the elapsed time between the action starts and ends, before sending the event.

Testing information

• In POS, add some items to cart, tap checkout, go back to the cart (make some edits or not) and tap checkout again, then follow the card payment flow. At the end, observe that the event has been tracked with elapsed times and a correct number of checkout_tap_count.

🔵 Tracked pos_card_present_collect_payment_success, properties: [is_wpcom_store: false, milliseconds_since_card_tapped: 5625.0, plan: , site_url: https://indiemelon.mystagingwebsite.com, checkout_tap_count: 3, store_id: c5bd46cc-1804-4f7b-badb-bb98c449127f, was_ecommerce_trial: false, milliseconds_since_customer_interaction_started: 27118.0, milliseconds_since_order_creation_success: 19099.0, blog_id: -1, milliseconds_since_reader_ready_to_collect_payment: 9861.0]

• Repeat the flow just tapping checkout once, observe the count is 1.

---

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on all devices (phone/tablet) and no regressions are added.

[dangermattic]

	1 Message
📖	This PR contains changes to Tracks-related logic. Please ensure (author and reviewer) the following are completed: The tracks events must be validated in the Tracks system. Verify the internal Tracks spreadsheet has also been updated. Please consider registering any new events. The PR must be assigned the category: tracks label.

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[wpmobilebot]

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

	App Name	WooCommerce iOS
	Build Number	pr15148-b94025c
	Version	21.7
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	b94025c
	App Center Build	WooCommerce - Prototype Builds #12971

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.

[iamgabrielma]

I had my doubts if this was the best place to add the order creation success event, I left my comments in the commit 3f9b72b