[gimp] gitlab-ci: generate SHA* checksums for generated Windows installers.

[Jehan <jehanp src gnome org>]

commit de9a171a191cd07d51eee44199116c7d87489b2b
Author: Jehan <jehan girinstud io>
Date:   Tue Jul 27 13:12:45 2021 +0200

    gitlab-ci: generate SHA* checksums for generated Windows installers.

 .gitlab-ci.yml | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eab62d4a09..96af8c7df8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -690,6 +690,10 @@ win-installer-nightly:
   script:
     - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
     - C:\msys64\usr\bin\bash -lc "bash -x ./build/windows/gitlab-ci/installer-gimp-msys2.sh > installer.log 
2>&1"
+    - cd build/windows/installer/_Output
+    - FILENAME=`ls gimp-*.exe` &&
+      sha256sum gimp-*.exe > ${FILENAME}.SHA256SUMS &&
+      sha512sum gimp-*.exe > ${FILENAME}.SHA512SUMS
   needs: ["packaging-win32-native", "packaging-win64-native"]
 
 sources: