Undo JOSM version bump

Signed-off-by: Taylor Smock <taylor.smock@kaart.com>

gradle.properties

@@ -1,9 +1,9 @@
 # The minimum JOSM version this plugin is compatible with (can be any numeric version
-plugin.main.version = 15521
+plugin.main.version = 15233
 # The JOSM version this plugin is currently compiled against
 # Please make sure this version is available at https://josm.openstreetmap.de/download
 # The special values "latest" and "tested" are also possible here, but not recommended.
-plugin.compile.version = 15521
+plugin.compile.version = 15233
 plugin.canloadatruntime = true
 plugin.author = Taylor Smock <incoming+gokaart/JOSM_MapWithAI@incoming.gitlab.com>
 plugin.class = org.openstreetmap.josm.plugins.mapwithai.MapWithAIPlugin