diff --git a/.github/workflows/check-subtree-split.yml b/.github/workflows/check-subtree-split.yml
deleted file mode 100644
index 16be48b..0000000
--- a/.github/workflows/check-subtree-split.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: Check subtree split
-
-on:
-  pull_request_target:
-
-jobs:
-  close-pull-request:
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Close pull request
-      uses: actions/github-script@v6
-      with:
-        script: |
-          if (context.repo.owner === "symfony") {
-            github.rest.issues.createComment({
-              owner: "symfony",
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: `
-          Thanks for your Pull Request! We love contributions.
-
-          However, you should instead open your PR on the main repository:
-          https://github.com/symfony/symfony
-
-          This repository is what we call a "subtree split": a read-only subset of that main repository.
-          We're looking forward to your PR there!
-          `
-            });
-
-            github.rest.pulls.update({
-              owner: "symfony",
-              repo: context.repo.repo,
-              pull_number: context.issue.number,
-              state: "closed"
-            });
-          }
diff --git a/.github/workflows/close-pull-request.yml b/.github/workflows/close-pull-request.yml
new file mode 100644
index 0000000..e55b478
--- /dev/null
+++ b/.github/workflows/close-pull-request.yml
@@ -0,0 +1,20 @@
+name: Close Pull Request
+
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: superbrothers/close-pull-request@v3
+      with:
+        comment: |
+          Thanks for your Pull Request! We love contributions.
+
+          However, you should instead open your PR on the main repository:
+          https://github.com/symfony/symfony
+
+          This repository is what we call a "subtree split": a read-only subset of that main repository.
+          We're looking forward to your PR there!
diff --git a/Loader/FilesystemLoader.php b/Loader/FilesystemLoader.php
index 6499e30..cd486d7 100644
--- a/Loader/FilesystemLoader.php
+++ b/Loader/FilesystemLoader.php
@@ -89,7 +89,7 @@ protected static function isAbsolutePath(string $file): bool
                 && ':' == $file[1]
                 && ('\\' == $file[2] || '/' == $file[2])
             )
-            || null !== parse_url($file, \PHP_URL_SCHEME)
+            || parse_url($file, \PHP_URL_SCHEME)
         ) {
             return true;
         }
diff --git a/Tests/DelegatingEngineTest.php b/Tests/DelegatingEngineTest.php
index fab4a7a..00700e6 100644
--- a/Tests/DelegatingEngineTest.php
+++ b/Tests/DelegatingEngineTest.php
@@ -134,7 +134,7 @@ private function getEngineMock($template, $supports)
 
     private function getStreamingEngineMock($template, $supports)
     {
-        $engine = $this->getMockForAbstractClass(MyStreamingEngine::class);
+        $engine = $this->createMock(MyStreamingEngine::class);
 
         $engine->expects($this->once())
             ->method('supports')