ci: Adjust CI Build for Doc-Only PRs validations with adjustments to …

…be more directory based

build/stage-determine-changes.yml

@@ -11,7 +11,6 @@ jobs:
 
       # Normalize the target branch name for PR builds or default to 'master' for push builds
       $targetBranchName = $isPR ? $prTargetBranch -replace 'refs/heads/', '' : "master"
-
       Write-Host "Build context determined: $(if ($isPR) { 'Pull Request targeting ' + $targetBranchName } else { 'Push' })"
 
       # Fetch the target or default base branch and determine the merge base
@@ -36,7 +35,9 @@ jobs:
       }
 
       foreach ($file in $changedFiles -split "`n") {
-          if ($file.EndsWith(".md") -or $file -like "*/toc.yml") {
+          $isDoc = $file.StartsWith("doc/") -or $file -match "^.*/?[^/]*\.md$" -or $file.StartsWith(".github/")
+          
+          if ($isDoc) {
               $docFiles++
           } else {
               $nonDocFiles++
@@ -67,4 +68,4 @@ jobs:
       Write-Host "##vso[task.setvariable variable=docsOnly;isOutput=true]$docsOnly"
       Write-Host "##vso[task.setvariable variable=nonDocsOnly;isOutput=true]$nonDocsOnly"
       Write-Host "##vso[task.setvariable variable=mixedChanges;isOutput=true]$mixedChanges"
-    name: DetermineChanges
+    name: DetermineChanges