[gnome-build-meta/juerg/strip-variables] core-deps/gnome-online-miners.bst: Use git_tag source plugin

[Jürg Billeter <juergbi src gnome org>]

commit 36c3248a8c38dfbdc3a1f05e31184ae3734246c8
Author: Jürg Billeter <j bitron ch>
Date:   Sun Feb 10 06:09:45 2019 +0100

    core-deps/gnome-online-miners.bst: Use git_tag source plugin
    
    This fixes build with BuildStream master.

 elements/core-deps/gnome-online-miners.bst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/elements/core-deps/gnome-online-miners.bst b/elements/core-deps/gnome-online-miners.bst
index 1bdfd3ca..d69454b4 100644
--- a/elements/core-deps/gnome-online-miners.bst
+++ b/elements/core-deps/gnome-online-miners.bst
@@ -1,8 +1,9 @@
 kind: autotools
 sources:
-- kind: git
+- kind: git_tag
   url: gitlab_gnome_org:GNOME/gnome-online-miners
   track: master
+  track-tags: True
 depends:
 - core-deps/gnome-online-accounts.bst
 - core-deps/grilo.bst