[gimp] build: also install intltool.

[Jehan <jehanp src gnome org>]

commit 32498a72d638b6da50dd948a5ed4c1d9451c06f4
Author: Jehan <jehan girinstud io>
Date:   Mon Mar 28 18:02:17 2022 +0200

    build: also install intltool.
    
    Seems that many tools got moved into different packages these last few
    days at MSYS2!

 build/windows/gitlab-ci/build-gimp-msys2.sh | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/build/windows/gitlab-ci/build-gimp-msys2.sh b/build/windows/gitlab-ci/build-gimp-msys2.sh
index 6fc5bea235..7e9013391b 100644
--- a/build/windows/gitlab-ci/build-gimp-msys2.sh
+++ b/build/windows/gitlab-ci/build-gimp-msys2.sh
@@ -26,6 +26,7 @@ pacman --noconfirm -S --needed \
     mingw-w64-$MSYS2_ARCH-toolchain \
     mingw-w64-$MSYS2_ARCH-autotools \
     mingw-w64-$MSYS2_ARCH-ccache \
+    mingw-w64-$MSYS2_ARCH-intltool \
     \
     mingw-w64-$MSYS2_ARCH-appstream-glib \
     mingw-w64-$MSYS2_ARCH-atk \