Also run on 5.6E branch

Fixes CURA-11523

.github/workflows/conan-package.yml

@@ -20,12 +20,8 @@ on:
       - 'main'
       - 'CURA-*'
       - 'PP-*'
-      - '[0-9].[0-9]'
-      - '[0-9].[0-9][0-9]'
-    tags:
-      - '[0-9].[0-9].[0-9]*'
-      - '[0-9].[0-9].[0-9]'
-      - '[0-9].[0-9][0-9].[0-9]*'
+      - '[0-9].[0-9]*'
+      - '[0-9].[0-9][0-9]*'
 
 env:
   CONAN_LOGIN_USERNAME_CURA: ${{ secrets.CONAN_USER }}