only run cifuzz on 2.18 branch (#4569)

pjfanning · cowtowncoder · web-flow · commit 9292f855a97b · 2024-06-06T11:32:49.000-07:00
Co-authored-by: Tatu Saloranta &lt;tatu.saloranta@iki.fi&gt;
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml
@@ -2,7 +2,6 @@ name: CIFuzz
 on:
   pull_request:
     branches:
-    - master
     - "2.18"
 
 permissions:
