Ship StaticSitesClient with swa-cli

**Is your feature request related to a problem? Please describe.**

swa-cli currently downloads a binary called StaticSitesClient from the internet before it uses it to deploy to Azure SWA. This leads to different issues: #557 #594 #615

It is not a good idea to change the behavior of software with the same version.

It is also not a good practice to download and run random code on running an NPM program (it is OK when installing the program).

**Describe the solution you'd like**

Package the StaticSitesClient with the swa-cli.

**Describe alternatives you've considered**

You could also pin the version of StaticSitesClient in the swa-cli and download the binary on "npm install". This would at least solve the issue with the change of behavior.