Meta: Add WPT in Azure CI

Author: https://github.com/kalenikaliaksandr
Commit: https://github.com/SerenityOS/serenity/commit/0677270a3e
Pull-request: https://github.com/SerenityOS/serenity/pull/19207
Reviewed-by: https://github.com/awesomekling

Meta/Azure/Lagom.yml

@@ -150,6 +150,15 @@ jobs:
           ASAN_OPTIONS: 'strict_string_checks=1:check_initialization_order=1:strict_init_order=1:detect_stack_use_after_return=0'
           UBSAN_OPTIONS: 'print_stacktrace=1:print_summary=1:halt_on_error=1'
 
+    - ${{ if and(eq(parameters.fuzzer, 'NoFuzz'), eq(parameters.os, 'Linux') ) }}:
+      - script: |
+          ./run.sh
+        displayName: 'WPT'
+        workingDirectory: $(Build.SourcesDirectory)/Tests/LibWeb/WPT/
+        env:
+          SERENITY_SOURCE_DIR: '$(Build.SourcesDirectory)'
+          QT_QPA_PLATFORM: 'offscreen'
+
     - ${{ if eq(parameters.lagom_lints, true) }}:
       - script: |
           set -e