[gnome-builder] appdata: update apdata for 3.33.1

[Christian Hergert <chergert src gnome org>]

commit daaa8afb731d0057e7d05be646b66321a48eb40e
Author: Christian Hergert <chergert redhat com>
Date:   Thu Apr 25 11:16:47 2019 -0700

    appdata: update apdata for 3.33.1

 data/appdata/org.gnome.Builder.appdata.xml.in | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/data/appdata/org.gnome.Builder.appdata.xml.in b/data/appdata/org.gnome.Builder.appdata.xml.in
index 30236f2ff..66cbefde1 100644
--- a/data/appdata/org.gnome.Builder.appdata.xml.in
+++ b/data/appdata/org.gnome.Builder.appdata.xml.in
@@ -86,6 +86,15 @@
   <translation type="gettext">gnome-builder</translation>
 
   <releases>
+    <release version="3.33.1" date="2019-04-23">
+      <description>
+        <p>
+          Builder 3.33.1 is our first release as we progress towards 3.34.
+          A number of new features are in this release such as a new search button, D-Bus inspector, podman 
support, git improvements, and more.
+        </p>
+      </description>
+    </release>
+
     <release version="3.32.0" date="2019-03-12">
       <description>
         <p>