[shotwell] flatpak: Update OpenCV to 4.2

[Jens Georg <jensgeorg src gnome org>]

commit 91a9ce1a2b1184db5166755ac5c1c96ae06d06bd
Author: Jens Georg <mail jensge org>
Date:   Sun Mar 15 10:41:46 2020 +0100

    flatpak: Update OpenCV to 4.2

 flatpak/org.gnome.Shotwell.Faces.json | 4 ++--
 flatpak/org.gnome.Shotwell.json       | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/flatpak/org.gnome.Shotwell.Faces.json b/flatpak/org.gnome.Shotwell.Faces.json
index 694537bc..3dfc08e1 100644
--- a/flatpak/org.gnome.Shotwell.Faces.json
+++ b/flatpak/org.gnome.Shotwell.Faces.json
@@ -54,8 +54,8 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "tag" : "3.4.8",
-                    "commit" : "6bdb9ca725de52ada2b452699fbbd39d8ef41188",
+                    "tag" : "4.2.0",
+                    "commit" : "bda89a6469aa79ecd8713967916bd754bff1d931",
                     "url" : "https://github.com/opencv/opencv";
                 }
             ]
diff --git a/flatpak/org.gnome.Shotwell.json b/flatpak/org.gnome.Shotwell.json
index ce82224a..e3019155 100644
--- a/flatpak/org.gnome.Shotwell.json
+++ b/flatpak/org.gnome.Shotwell.json
@@ -195,8 +195,8 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "tag" : "3.4.9",
-                    "commit" : "64e6cf9fe50ef25d317d3529a42d4862b93f002a",
+                    "tag" : "4.2.0",
+                    "commit" : "bda89a6469aa79ecd8713967916bd754bff1d931",
                     "url" : "https://github.com/opencv/opencv";
                 }
             ]