Make sure all the test files are installed

Signed-off-by: Louis-Philippe Véronneau <pollo@debian.org>

Author: baldurmen

pyproject.toml

@@ -45,7 +45,7 @@ whipper = "whipper.command.main:main"
 namespaces = false
 
 [tool.setuptools.package-data]
-"whipper" = ["test/*"]
+"whipper" = ["test/**"]
 
 [tool.setuptools_scm]
 # Empty, but needed to enable SCM