app/matrix/matrix.hackerspace.pl: update appservice-irc-freenode node

Change-Id: Id9c47f61d51291bd10fab3c58c17abddc1fdac17
diff --git a/app/matrix/matrix.hackerspace.pl.jsonnet b/app/matrix/matrix.hackerspace.pl.jsonnet
index 6488fbb..0a34a04 100644
--- a/app/matrix/matrix.hackerspace.pl.jsonnet
+++ b/app/matrix/matrix.hackerspace.pl.jsonnet
@@ -30,7 +30,7 @@
                 metadata: app.metadata("appservice-irc-freenode"),
                 // TODO(q3k): add labels to blessed nodes
                 nodeSelector: {
-                    "kubernetes.io/hostname": "bc01n03.hswaw.net",
+                    "kubernetes.io/hostname": "bc01n02.hswaw.net",
                 },
                 config+: {
                     homeserver+: {