Add pyton-version to setup PyPy output (#365)

* Add pyton-version to setup PyPy output

* remove new line from pypy version

* Move setOutput to findPyPyVersion

* Resolve conflict: 2

src/find-pypy.ts

@@ -52,6 +52,7 @@ export async function findPyPyVersion(
   core.exportVariable('pythonLocation', pythonLocation);
   core.addPath(pythonLocation);
   core.addPath(_binDir);
+  core.setOutput('python-version', 'pypy' + resolvedPyPyVersion.trim());
 
   return {resolvedPyPyVersion, resolvedPythonVersion};
 }