This makes a number of changes and in depth testing is probably
warranted.
* Bump the golang version to 1.16 to match upstream's dockerfile
golang version.
* Bump the nodejs version to latest stable which is v16.x and
consume it from the buster repo since our image is based on buster.
* Bump the gitea version to 1.14.4.
* Rename all of the opendev-.*.png logo files to logo-.*.png as the
names of these files are no longer customizable. The reason for this
is the user settable json manifest has been removed.
* We keep opendev-sm.png because Gerrit apparently loads this?
* Update html templates to be in line with 1.14.4's templates.
* Use the gitea `admin user create` command instead of `admin
create-user`. While I can't find removal or deprecation notices for
the previous command the current docs note you should use the new
version and the old one is failing in CI.
Change-Id: I0a05ebb963cca5be88aeb2f859bfbeefa0f9c8e0
bcc6e77440