Use long-lived URL

Author: johndowns

Dockerfile

@@ -3,7 +3,7 @@ FROM mcr.microsoft.com/windows/servercore:ltsc2019
 # Download the latest self-hosted integration runtime installer into the SHIR folder
 COPY SHIR C:/SHIR/
 
-ADD https://download.microsoft.com/download/E/4/7/E4771905-1079-445B-8BF9-8A1A075D8A10/IntegrationRuntime_5.17.8186.1.msi C:/SHIR/
+ADD https://go.microsoft.com/fwlink/?linkid=839822&clcid=0x409 C:/SHIR/
 
 RUN ["powershell", "C:/SHIR/build.ps1"]