pwsh for release (#4638)

Co-authored-by: Aleksandr Levochkin <[email protected]>

Author: rumyax

.azure-pipelines/scripts/switch-branch.ps1

@@ -0,0 +1,8 @@
+git config user.email "[email protected]"
+git config user.name "azure-pipelines-bot"
+
+git checkout -f origin/$env:TARGET_BRANCH
+
+if ($LASTEXITCODE -ne 0){
+    Write-Error "git checkout failed with exit code $LASTEXITCODE" -ErrorAction Stop
+}

.vsts.release.yml

@@ -172,10 +172,10 @@ extends:
           - checkout: self
             clean: true
 
-          - task: Bash@3
+          - task: PowerShell@2
             displayName: Switch to release branch
             inputs:
-              filePath: .azure-pipelines/scripts/switch-branch.sh
+              filePath: .azure-pipelines/scripts/switch-branch.ps1
             env:
               TARGET_BRANCH: $(ReleaseBranch)