feat: new build commands for Android and iOS

[Tyschenko]

We're working on adding new Workflows to Bitrise to support more granular customisation of builds for Android and iOS.

Ticket: #15565

Target state: https://docs.google.com/spreadsheets/d/1tj3Pi2RpOmGs0cnQfv219khs7JSyzW8Raz7eHXlGBqE/edit?pli=1&gid=0#gid=0

In this PR I've added only 6 workflows, below you can find examples of their runs:

1. build_ios_main_prod https://app.bitrise.io/build/665389f1-a3bb-4651-a44d-ed7899092416
2. build_ios_main_beta https://app.bitrise.io/build/e318e232-8eb4-401b-b134-0510ffe1387d
3. build_ios_main_rc https://app.bitrise.io/build/96cca5c2-a0d0-44df-8684-4180fe0820d9
4. build_android_main_prod https://app.bitrise.io/build/1c657bf4-8a94-4c85-ac91-01e6f28c97d1
5. build_android_main_beta https://app.bitrise.io/build/2c9339e9-b4dd-49c6-b7e2-44b05695ed38
6. build_android_main_rc https://app.bitrise.io/build/e56fb2e7-242f-46e0-a591-17254679be58

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
70.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sethkfman]

LGTM