[Initiatives.wiki] Update DevOps with Flatpak

[Jordan Petridis <jpetridis src gnome org>]

commit 8f30a38fb4110566a06651f30959257019700427
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Sat Aug 4 08:01:06 2018 +0000

    Update DevOps with Flatpak

 DevOps-with-Flatpak.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/DevOps-with-Flatpak.md b/DevOps-with-Flatpak.md
index 75a5c46..f02cdaa 100644
--- a/DevOps-with-Flatpak.md
+++ b/DevOps-with-Flatpak.md
@@ -172,7 +172,7 @@ flatpak:
             - ${BUNDLE}
             - _build/meson-logs/meson-log.txt
             - _build/meson-logs/testlog.txt
-        expire_in: 30 days
+        expire_in: 7 days
     cache:
         paths:
              - .flatpak-builder/cache