chore(dagger): downgrade dagger engine (#1337)

Signed-off-by: Miguel Martinez <[email protected]>

Author: migmartri

dagger.json

@@ -2,5 +2,5 @@
   "name": "chainloop",
   "sdk": "go",
   "source": "extras/dagger",
-  "engineVersion": "v0.13.0"
+  "engineVersion": "v0.12.3"
 }