Always use named pipes on Windows for gRPC

[andyleejordan]

While modern Windows technically supports UDS, many libraries (like Rust's Tokio) do not. So unfortunately is much more straightforward to always use named pipes on Windows.

Description

Example Usage

PowerShell/DSC#1330

Checklist

• I have read and adhere to the contribution guide.

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 20725033132)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 20725033132

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 20725033132"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 20725033132

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 20725033132"