[FFe] Please update nginx to 1.13.12

[Thomas Ward]

Feature Freeze exception:

Much like 16.04, we want to get nginx in 18.04 as close to a LTS release as possible. Future updates to get the actual upstream LTS release to a stable branch will come from bionic-updates.

Features are only added between 1.13.10 and 1.13.11, and are detailed here (from http://nginx.org/en/CHANGES):

Changes with nginx 1.13.11 (03 Apr 2018)

    *) Feature: the "proxy_protocol" parameter of the "listen" directive now
       supports the PROXY protocol version 2.

    *) Bugfix: nginx could not be built with OpenSSL 1.1.1 statically on
       Linux.

    *) Bugfix: in the "http_404", "http_500", etc. parameters of the
       "proxy_next_upstream" directive.

1.13.12 was a bugfix-only release:

Changes with nginx 1.13.12 (10 Apr 2018)

    *) Bugfix: connections with gRPC backends might be closed unexpectedly
       when returning a large response.

[Thomas Ward (teward)]

This was uploaded to Proposed, pending acceptance.

[Thomas Ward (teward)]

Package was accepted into the bionic-proposed repository with no action on this bug, indicating that this was implicitly approved. Marking as "In Progress", pending migration to the Bionic repository itself.

[Thomas Ward (teward)]

nacc indicated "Fix Committed" is the proper one here. Setting as such.

[Andreas Hasenack (ahasenack)]

Bionic was released with 1.14.0-0ubuntu1, marking this bug as fix released.