Update version to v1.0.6

PiperOrigin-RevId: 371924815
Change-Id: I51645e6caf1d1a2d03dee3b98b7aec4e93718db4

Author: tomwardio

RELEASE_NOTES.md

@@ -1,5 +1,12 @@
 # Release Notes
 
+## [1.0.6]
+
+*   `tensor_spec.bounds()` no longer broadcasts scalar bounds.
+*   Fixed bug where `reward` and `discount` were inadvertently included in the
+    observations when using `dm_env_adaptor`, without explicitly requesting
+    these as observations.
+
 ## [1.0.5]
 
 *   Better support for string specs in `dm_env_adaptor`.

dm_env_rpc/_version.py

@@ -17,4 +17,4 @@
 Kept in separate file so it can be used during installation.
 """
 
-__version__ = '1.0.5'  # https://www.python.org/dev/peps/pep-0440/
+__version__ = '1.0.6'  # https://www.python.org/dev/peps/pep-0440/