software/gitlab: use patched version of rubygemsrecipe to avoid shebang line length limit.

https://bitbucket.org/sirex/rubygemsrecipe/issues/9/gem-shebang-line-length-limitation

software/gitlab/software.cfg

@@ -384,6 +384,6 @@ strip-top-level-dir = true
 cns.recipe.symlink = 0.2.3
 docutils = 0.12
 plone.recipe.command = 1.1
-rubygemsrecipe  = 0.2.2
+rubygemsrecipe  = 0.2.2+slapos001
 slapos.recipe.template = 2.9
 z3c.recipe.scripts = 1.0.1