*/*: drop to maintainer-needed

Closes: https://github.com/gentoo/guru/pull/141
Signed-off-by: Julien Roy <julien@jroy.ca>

dev-python/pytest-celery/metadata.xml

@@ -1,12 +1,9 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-  <maintainer type="person">
-    <email>lssndrbarbieri@gmail.com</email>
-    <name>Alessandro Barbieri</name>
-  </maintainer>
+  <!-- maintainer-needed -->
   <upstream>
     <remote-id type="github">celery/pytest-celery</remote-id>
     <remote-id type="pypi">celery</remote-id>
   </upstream>
-</pkgmetadata>
+</pkgmetadata>