Update Go to version 1.14 (#4573)

* Put additional Riak config in a heredoc

* Expose Traffic Vault HTTPS port

* Use TLS 1.1 to connect to Traffic Vault
In riak.conf, maxVersion 770 means tls.VersionTLS11 (0x0302)

* Update Go to version 1.14

* Add a note on the importance of enabling TLS 1.1 in Traffic Vault in
order for Traffic Ops to be able to reach it

* Grove requires minor Go version 14 or greater to build

* Only require Go 1.13 to install goose

* Require Go version >= 1.12 to install Goose because CentOS 8 provides
golang 1.12 (and its EPEL repo does not have golang)

* - Add MaxTLSVersion configuration option to riak.conf with docs and tests
- Add "required" to the Enabling TLS 1.1 title in the Traffic Vault admin docs

* Update swaggerdocs go version to 1.14.1

* Update install_go.sh go version to 1.14.1

* Update Go to version 1.14.2

* - Reword Traffic Vault TLS 1.1 changelog summary to link to the Traffic
  Vault admin instructions for enabling TLS 1.1
- Reword Go 1.14 changelog summary
33 files changed