acct-user/rspamd: update maintainers

Sync with mail-filter/rspamd.

Signed-off-by: Sam James <[email protected]>

acct-user/rspamd/metadata.xml

@@ -1,8 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-	<maintainer type="person">
-		<email>[email protected]</email>
-		<name>Dirkjan Ochtman</name>
-	</maintainer>
+  <maintainer type="person" proxied="yes">
+    <email>[email protected]</email>
+    <name>Petr Vaněk</name>
+  </maintainer>
+  <maintainer type="project" proxied="proxy">
+    <email>[email protected]</email>
+    <name>Proxy Maintainers</name>
+  </maintainer>
 </pkgmetadata>