[pango/update-subprojects] release: Update included subprojects

[Matthias Clasen <matthiasc src gnome org>]

commit 47aadae9d3f1d8caae9dfe8eff447ec4ff89be27
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 27 08:53:12 2021 -0400

    release: Update included subprojects
    
    Failure to do so led to a slightly outdated gi-docgen
    in the 1.48.4 tarball.

 make-release.sh | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/make-release.sh b/make-release.sh
index 1f203b2c..c29771e7 100755
--- a/make-release.sh
+++ b/make-release.sh
@@ -9,6 +9,9 @@ if [ -d ${release_build_dir} ]; then
   exit 1
 fi
 
+# make sure included subprojects are current
+meson subprojects update gi-docgen
+
 # make the release tarball
 meson setup -Dgtk_doc=true --force-fallback-for gi-docgen ${release_build_dir} || exit
 meson compile -C${release_build_dir} || exit