redirection for www.grass.osgeo.org

[robe]

As noted in ​https://github.com/OSGeo/grass-website/issues/219

A redirect for www.grass.osgeo.org is needed which goes to -> grass.osgeo.org

I'm not going to bother with a wildcard as suggested in the ticket as wildcards are a pain to renew.

So I'll just add on www.grass.osgeo.org to the existing cert.

[robe]

Okay I've added www.grass.osgeo.org to pairs as osgeo7.osgeo.org, revised the grass.osgeo.org to have redirect for www.grass.osgeo.org -> grass.osgeo.org config at

​https://git.osgeo.org/gitea/sac/osgeo7/commit/b2f26b3de69e9749c82dd3aeeb5fc1dab8872afa

on nginx container

bound ssl together with grass.osgeo.org one.

certbot -d grass.osgeo.org -d www.grass.osgeo.org

It contains these names: grass.osgeo.org

You requested these names for the new certificate: grass.osgeo.org,
www.grass.osgeo.org.

Do you want to expand and replace this existing certificate with the new
certificate?
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(E)xpand/(C)ancel: E