Update submodules: plugins (new commits)

plugins:
    3075bb9 Chris Smith <chris@dmdirc.com>
            Handle changes to listener.

            Depends-On: Icfa391f54033bad26f9b27b2ff8a0a518e192613
            Gerrit: http://gerrit.dmdirc.com/2761

    946460f Chris Smith <chris@dmdirc.com>
            Fix a ConfigProvider change.

            Depends-On: Ie624753f758c4c2984e07682a11d774a01d91184
            Gerrit: http://gerrit.dmdirc.com/2762

Change-Id: I8c683a0c012e2f4068893dae4c54b21f1e2937b9

modules/plugins

@@ -1 +1 @@
-Subproject commit 28e3529e086c80bc84c715b1ad1514b2b7c5b32a
+Subproject commit 3075bb91a225041ce01be07446c1c2e2fcfb0a2a