kate: add appimage version 25.07.70 (nighlly)

Kate is a KDE editor. It looks pretty much like sublime-text.

One reason to have it installed as appimage, is to have a
working example application that uses a recent QT6 and the
KDE core libraries (i.e. things we might need to catch up with).

See: https://kate-editor.org
( ... a Feature-Packed Text Editor )

kate-25.07.70-20250519-0.build.sh

@@ -0,0 +1,25 @@
+#! /bin/sh
+
+set -eu
+
+PKG=kate
+VERSION=25.07.70-20250519
+BUILD=0
+
+PREFIX=/pkg/$PKG-$VERSION-$BUILD
+if [ -n "${TESTING:-}" ]; then PREFIX=/scratch/local2/$PKG-$VERSION-$BUILD ; fi
+
+mkdir -p $PREFIX/bin
+cd $PREFIX
+
+cat > $PREFIX/profile <<- EOF
+	PATH=$PREFIX/bin:\$PATH
+	TMPDIR=/scratch/local2/\$USER/appimage/$PKG
+	mkdir -pv \$TMPDIR
+EOF
+
+cd bin
+# orig: https://cdn.kde.org/ci-builds/utilities/kate/master/linux/kate-master-9467-linux-gcc-x86_64.AppImage
+BEEHIVE=https://beehive.molgen.mpg.de/8ea9ed055cce00d94a90009b98fc5943/kate-master-9467-linux-gcc-x86_64.AppImage
+wget -nv $BEEHIVE
+chmod -c +x kate-master-9467-linux-gcc-x86_64.AppImage