Update CDN domain for Core Tools

[mattchenderson]

We need to change from functionscdn.azureedge.net to cdn.functions.azure.com.

For the Core Tools, there is are direct dependencies...

1. in the build config:

   azure-functions-core-tools/build/Settings.cs

   Line 196 in 2619642

   public static readonly string TemplatesJsonZip = $"https://functionscdn.azureedge.net/public/TemplatesApi/{TemplateJsonVersion}.zip";

2. In the publish scripts:

   azure-functions-core-tools/publish-scripts/shared/helper.py

   Line 61 in 2619642

   url = f'https://functionscdn.azureedge.net/public/4.0.{constants.CONSOLIDATED_BUILD_ID}/{fileName}'

3. In the Chocolatey script:

   azure-functions-core-tools/publish-scripts/chocolatey/buildNUPKG.py

   Line 48 in 2619642

   url = f'https://functionscdn.azureedge.net/public/4.0.{constants.CONSOLIDATED_BUILD_ID}/{fileName}'

4. In the npm script:

   azure-functions-core-tools/src/Azure.Functions.Cli/npm/lib/install.js

   Line 45 in 9a8ba2e

   const endpoint = 'https://functionscdn.azureedge.net/public/' + consolidatedBuildId + '/' + fileName;

Related, we should update the dotnet-install script as per dotnet/core#9671:

azure-functions-core-tools/dotnet-install.sh

Line 815 in 9a8ba2e

azure_feed="https://dotnetcli.azureedge.net/dotnet"

This issue description may not include all instances that need to be changed. As part of this work, a re-audit should be completed.

An ad-hoc release should be planned for these changes.