feat: bump to 0.12.0

Author: stanislavulrych

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="tempo-api-python-client",
-    version="0.11.0",
+    version="0.12.0",
     author="Stanislav Ulrych",
     author_email="[email protected]",
     description="Python bindings for Tempo (https://apidocs.tempo.io/)",