put back gersemi definitions

ahoarau · ahoarau · commit 483e40a5f8cb · 2025-12-16T22:24:07.000+01:00
no chance observed in this repo. Its for future proofness.
diff --git a/.gersemirc b/.gersemirc
@@ -1,4 +1,4 @@
-definitions: []
+definitions: [./CMakeLists.txt, ./tests]
 line_length: 100
 indent: 2
 warn_about_unknown_commands: false
