[tracker-miners] build: Bump version to 2.3.0 in master

[Sam Thursfield <sthursfield src gnome org>]

commit a176fb91c6f2cc9ae5267cf1fcb34c0a55982800
Author: Sam Thursfield <sam afuera me uk>
Date:   Sat May 25 20:17:23 2019 +0200

    build: Bump version to 2.3.0 in master
    
    API additions for the 2.3 series are now possible.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 30f2bde4d..045715239 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('tracker-miners', 'c',
-        version: '2.2.2',
+        version: '2.3.0',
         meson_version: '>=0.47')
 
 gnome = import('gnome')