ci: update provider

Signed-off-by: mevrin <[email protected]>

pyproject.toml

@@ -50,7 +50,7 @@ install.strip = true
 # In this case we need custom local plugin to get
 # the project version from cmake.
 experimental = true
-metadata.version.provider = "skbuild_plugin"
+metadata.version.provider = "Imath"
 metadata.version.provider-path = "./src/python"