[py-smart-open] fixing dependencies (#17640)

* version 1.8.4 requires py-boto at 2.3.2:
* google-cloud-storage only in newer versions

var/spack/repos/builtin/packages/py-smart-open/package.py

@@ -21,5 +21,6 @@ class PySmartOpen(PythonPackage):
     depends_on('py-setuptools', type='build')
     depends_on('py-requests', type=('build', 'run'))
     depends_on('py-boto3', type=('build', 'run'))
-    depends_on('py-google-cloud-storage', type=('build', 'run'))
+    depends_on('py-boto@2.3.2:', when='@1.8.4', type=('build', 'run'))
+    depends_on('py-google-cloud-storage', when='@1.10:', type=('build', 'run'))
     depends_on('py-bz2file', when='^python@:2', type=('build', 'run'))