webapp: Zipdeployment status polling : Increase default time out (currently 5mins) & decrease the polling interval (currently 30s)

[panchagnula]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior.

Expected behavior
A clear and concise description of what you expected to happen.

Environment summary
Install Method (e.g. pip, interactive script, apt-get, Docker, MSI, edge build) / CLI version (az --version) / OS version / Shell Type (e.g. bash, cmd.exe, Bash on Windows)

Additional context
Add any other context about the problem here.

[yugangw-msft]

Fixed by #7930