minor #4671 Enable Fabbot as a GHA (nicolas-grekas)

This PR was merged into the 3.x branch.

Discussion
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Enable Fabbot as a GHA

Follows symfony/symfony#61256

Commits
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a1ea8ed Enable Fabbot as a GHA

Author: nicolas-grekas

.github/workflows/fabbot.yml

@@ -0,0 +1,14 @@
+name: CS
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  call-fabbot:
+    name: Fabbot
+    uses: symfony-tools/fabbot/.github/workflows/fabbot.yml@main
+    with:
+      package: Twig