try alternate syntax

Author: Fabien Coelho

.github/workflows/ctu.yml

@@ -33,22 +33,26 @@ jobs:
         - version: "3.13t"
           # 2025-03-07 KO crypt => cryptography
           cover: 84.0
-          env: PYTHON_GIL=0
+          env:
+            PYTHON_GIL: 0
           deps: doc,dev,tests
         - version: "3.13t"
           cover: 84.0
-          env: PYTHON_GIL=1
+          env:
+            PYTHON_GIL: 1
           deps: doc,dev,tests
         - version: "3.14"
           cover: 100.0
           deps: doc,dev,tests,crypt
         - version: "3.14t"
           cover: 84.0
-          env: PYTHON_GIL=0
+          env:
+            PYTHON_GIL: 0
           deps: doc,dev,tests
         - version: "3.14t"
           cover: 84.0
-          env: PYTHON_GIL=1
+          env:
+            PYTHON_GIL: 1
           deps: doc,dev,tests
     steps:
     # Setup