Added distinct() function to systemNameSpace and updated baselines

[Likhithakmsft]

Description

Adds support for the distinct() built-in function in bicep .
The function returns a new array containing only the unique elements from the input.

Example Usage

var values = [1, 2, 2, 3, 1]
var uniqueValues = distinct(values)

output = [1, 2, 3]

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 24361708846)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 24361708846

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 24361708846"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 24361708846

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 24361708846"