[Tooling] Fix create_gh_release lane parameters

[iangmaia]

Fixing the private lane create_gh_release so that it explicitly requires a app: parameter that needs to be used when calling it, also updating it on the required call sites.

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 19.2 ❄️. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

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[wpmobilebot]

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

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	5f4b1fc
	Direct Download	woocommerce-wear-prototype-build-pr11772-5f4b1fc.apk

[wpmobilebot]

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

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	5f4b1fc
	Direct Download	woocommerce-prototype-build-pr11772-5f4b1fc.apk