Revert "Added "Generate .env" step after "Use Node.js" and removed the old "Create .env file" step"

This reverts commit 21653b4.

Author: nhudinh0309

build/azure-pipeline.yml

@@ -327,6 +327,18 @@ stages:
               URL=$(testSiteUrl)" | Out-File .env
             displayName: Generate .env
             workingDirectory: $(acceptanceTestPath)
+          # Cache npm packages
+          - script: mkdir -p $(npm_config_cache_e2e)
+            displayName: Create npm cache directory
+
+          - task: Cache@2
+            displayName: Cache npm packages
+            inputs:
+              key: '"npm_e2e" | "$(Agent.OS)" | src/Umbraco.Test.Search.AcceptanceTest/package-lock.json'
+              restoreKeys: |
+                "npm_e2e" | "$(Agent.OS)"
+                "npm_e2e"
+              path: $(npm_config_cache_e2e)
 
           # Install acceptance test dependencies
           - script: npm ci --no-fund --no-audit