Rename `useInstalledDotNetCli` to `use_installed_dotnet_cli` bootstrapper Bash variable

[tmat]

• renamed in Arcade
• rename in https://github.com/dotnet/standard
• rename in https://github.com/dotnet/sdk
• rename in https://github.com/dotnet/cli

other repos?

[jonfortescue]

@markwilkie sorry, I don't have context on this one -- can you help me understand how this is related to the Helix epic?

[MattGal]

Just found this issue touching build.sh, kicking it out of the epic.

[garath]

Closing as this has languished and doesn't seem to be blocking anything. Please reopen if that's incorrect.

[MattGal]

Reopening as we should at least remove the mentions that are still in the scripts so I stop coming here.

[jakubstilec]

[Async Triage]: Can't we assign it into Arcade debt epic #6811?

[jakubstilec]

[Async triage]: Assigned to #6811.