[gexiv2] Re-enable scheduled CI against exiv2 main branch

[Jens Georg <jensgeorg src gnome org>]

commit 2a709213fca1dd51b9293da4eceb39177b470cb7
Author: Jens Georg <mail jensge org>
Date:   Tue Apr 20 19:30:16 2021 +0200

    Re-enable scheduled CI against exiv2 main branch

 .gitlab-ci.yml                  | 8 ++++----
 build-aux/org.gnome.GExiv2.json | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 60dbc7d..db628ae 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,10 +34,10 @@ stages:
   - test
   - deploy
 
-    #exiv2-master:on-schedule:
-    #extends: .flatpak
-    #variables:
-    #    MANIFEST_PATH: "build-aux/org.gnome.GExiv2.json"
+exiv2-master:on-schedule:
+    extends: .flatpak
+    variables:
+        MANIFEST_PATH: "build-aux/org.gnome.GExiv2.json"
 
 exiv2-stable:on-schedule:
     extends: .flatpak
diff --git a/build-aux/org.gnome.GExiv2.json b/build-aux/org.gnome.GExiv2.json
index a696e6a..a990853 100644
--- a/build-aux/org.gnome.GExiv2.json
+++ b/build-aux/org.gnome.GExiv2.json
@@ -37,7 +37,7 @@
                 {
                     "type" : "git",
                     "url" : "https://github.com/Exiv2/exiv2/";,
-                    "branch" : "master"
+                    "branch" : "main"
                 }
             ]
         },