Update release type (#1839)

Signed-off-by: Cédrik Fuoco <cedrik.fuoco@autodesk.com>

Author: cedrik-fuoco-adsk

CMakeLists.txt

@@ -35,7 +35,7 @@ project(OpenColorIO
     LANGUAGES CXX C)
 
 # "dev", "beta1", rc1", etc or "" for an official release.
-set(OpenColorIO_VERSION_RELEASE_TYPE "dev")
+set(OpenColorIO_VERSION_RELEASE_TYPE "")
 
 
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