Use GA version of Server 2025 base image

Author: lbussell

eng/dockerfile-templates/runtime/Dockerfile

@@ -30,11 +30,6 @@
     set repo to "mcr.microsoft.com/windows/servercore" ^
     set tag to cat(OS_VERSION_NUMBER, "-amd64") ^
 
-    if isServer2025:{{
-        set repo to cat(repo, "/insider") ^
-        set tag to VARIABLES[cat("windowsservercore|", OS_VERSION_NUMBER, "|insider|tag")]
-    }}^
-
     set fromImage to cat(repo, ":", tag)
 
 }}# escape=`

manifest.versions.json

@@ -40,8 +40,6 @@
       "vs|testAgentUrl": "https://aka.ms/vs/17/release/vs_TestAgent.exe",
       "vs|buildToolsUrl": "https://aka.ms/vs/17/release/vs_BuildTools.exe",
 
-      "windowsservercore|ltsc2025|insider|tag": "10.0.26304.5000",
-
       "4.7|url": "https://download.visualstudio.microsoft.com/download/pr/2dfcc711-bb60-421a-a17b-76c63f8d1907/e5c0231bd5d51fffe65f8ed7516de46a/ndp47-kb3186497-x86-x64-allos-enu.exe",
       "4.7.1|url": "https://download.visualstudio.microsoft.com/download/pr/4312fa21-59b0-4451-9482-a1376f7f3ba4/9947fce13c11105b48cba170494e787f/ndp471-kb4033342-x86-x64-allos-enu.exe",
       "4.7.2|url": "https://download.visualstudio.microsoft.com/download/pr/1f5af042-d0e4-4002-9c59-9ba66bcf15f6/089f837de42708daacaae7c04b7494db/ndp472-kb4054530-x86-x64-allos-enu.exe",

src/runtime/3.5/windowsservercore-ltsc2025/Dockerfile

@@ -1,6 +1,6 @@
 # escape=`
 
-FROM mcr.microsoft.com/windows/servercore/insider:10.0.26304.5000
+FROM mcr.microsoft.com/windows/servercore:ltsc2025-amd64
 
 ENV `
     # Enable detection of running in a container

src/runtime/4.8.1/windowsservercore-ltsc2025/Dockerfile

@@ -1,6 +1,6 @@
 # escape=`
 
-FROM mcr.microsoft.com/windows/servercore/insider:10.0.26304.5000
+FROM mcr.microsoft.com/windows/servercore:ltsc2025-amd64
 
 ENV `
     # Enable detection of running in a container