🐛(tilt) update certificate path for Python 3.13 upgrade

Fix certificate directory reference that still pointed to Python 3.12 folder
after upgrading to Python 3.13. Resolves certificate verification errors in
tilt stack caused by incorrect certificate location.

Author: lebaudantoine

src/helm/env.d/dev/values.impress.yaml.gotmpl

@@ -96,7 +96,7 @@ backend:
   # Extra volume mounts to manage our local custom CA and avoid to set ssl_verify: false
   extraVolumeMounts:
     - name: certs
-      mountPath: /usr/local/lib/python3.12/site-packages/certifi/cacert.pem
+      mountPath: /usr/local/lib/python3.13/site-packages/certifi/cacert.pem
       subPath: cacert.pem
 
   # Extra volumes to manage our local custom CA and avoid to set ssl_verify: false