fix $ mv ../*.{deb,dsc,buildinfo,tar.xz,changes} build/debian/

mv: target 'build/debian/' is not a directory
by creating the directory if not already exists

.gitlab-ci.yml

@@ -88,6 +88,7 @@ packaging:
     - (cd dist ; mv *.exe *-mac-x64.zip *.tar.gz ../build)
     - echo "Building Debian packages"
     - dpkg-buildpackage -uc -us
+    - mkdir -p build/debian
     - mv ../*.{deb,dsc,buildinfo,tar.xz,changes} build/debian/
     - echo "Building RPM packages"
     - cp GridTracker-*.x86.tar.gz $HOME/rpmbbuild/SOURCES/