ci: PLT-442: Set version

Author: nikitabelonogov

fern/generators.yml

@@ -10,6 +10,7 @@ groups:
       - public
     generators:
       - name: fernapi/fern-python-sdk
+        version: 1.0.6-dev
         output:
           location: pypi
           package-name: label-studio-sdk
@@ -53,6 +54,7 @@ groups:
       - public
     generators:
       - name: fernapi/fern-python-sdk
+        version: 1.0.6-dev
         output:
           location: local-file-system
           path: ../label_studio_sdk