Update mroonga and groonga

 * https://github.com/mroonga/mroonga/commit/f4d3e6a612d346f690bbf68893e339ff0b69e5b8 might fix the crash we were observing with https://lab.nexedi.com/nexedi/slapos/-/blob/0fad9a6dcaf6f5750c03dcd2a6b42364207767ff/software/erp5/test/test/benchmarks.py , I ran this test 10 times without crash.

 * ~~There's a test failure in ERP5, but it does not seem harmful and we can have a workaround ( nexedi/erp5!1993 )~~ In the end, the problem was fixed upstream so we backport the fix.

See merge request nexedi/slapos!1644