[repo] Add-labels workflow fix (#5605)

Co-authored-by: Reiley Yang <reyang@microsoft.com>

.github/workflows/add-labels.yml

@@ -18,13 +18,8 @@ jobs:
       - name: Add labels for areas found in bug issue descriptions
         shell: pwsh
         run: |
-          $match = [regex]::Match('${{ github.event.issue.body }}', '^[#]+ Area\s*?(area:\w+)')
-          if ($match.Success -eq $false)
-          {
-              Return
-          }
-
-          gh issue edit ${{ github.event.issue.number }} `
-            --add-label $match.Groups[1].Value
+          .\build\scripts\add-labels.ps1 -issueNumber $env:ISSUE_NUMBER -issueBody $env:ISSUE_BODY
         env:
           GH_TOKEN: ${{ github.token }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          ISSUE_BODY: ${{ github.event.issue.body }}

OpenTelemetry.sln

@@ -338,6 +338,11 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "TagWriter", "TagWriter", "{
 		src\Shared\TagWriter\TagWriter.cs = src\Shared\TagWriter\TagWriter.cs
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "scripts", "scripts", "{44982E0D-C8C6-42DC-9F8F-714981F27CE6}"
+	ProjectSection(SolutionItems) = preProject
+		build\scripts\add-labels.ps1 = build\scripts\add-labels.ps1
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -649,6 +654,7 @@ Global
 		{19545B37-8518-4BDD-AD49-00C031FB3C2A} = {3862190B-E2C5-418E-AFDC-DB281FB5C705}
 		{87A20A76-D524-4AAC-AF92-8725BFED0415} = {A49299FB-C5CD-4E0E-B7E1-B7867BBD67CC}
 		{993E65E5-E71B-40FD-871C-60A9EBD59724} = {A49299FB-C5CD-4E0E-B7E1-B7867BBD67CC}
+		{44982E0D-C8C6-42DC-9F8F-714981F27CE6} = {7CB2F02E-03FA-4FFF-89A5-C51F107623FD}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {55639B5C-0770-4A22-AB56-859604650521}

build/scripts/add-labels.ps1

@@ -0,0 +1,12 @@
+param(
+  [Parameter(Mandatory=$true)][int]$issueNumber,
+  [Parameter(Mandatory=$true)][string]$issueBody
+)
+
+$match = [regex]::Match($issueBody, '^[#]+ Area\s*?(area:\w+)')
+if ($match.Success -eq $false)
+{
+    Return
+}
+
+gh issue edit $issueNumber --add-label $match.Groups[1].Value