chore: updated ga scripts to upload apks

[CloudyPadmal]

Fixes #2311

Changes:

• Two workflows. One for pull requests where it will just builds the project, another for push events where it will generate apk files and upload to apk branch

Screen shots for the changes:

N/A

Checklist:

• I have used resources from strings.xml, dimens.xml and colors.xml without hard-coding any value.
• No modifications done at the end of resource files strings.xml, dimens.xml or colors.xml.
• I have reformatted code and fixed indentation in every file included in this pull request
• My code does not contain any extra lines or extra spaces.