* Update go version to 1.19.2
This commit updates the default version of go to 1.19.2. This update
includes minor security fixes for archive/tar, net/http/httputil, and
regexp packages.
For more information on the release, see: https://go.dev/doc/devel/release#go1.19.2
* Update Docker versions in CI to 20.10.17
After updating Vault to go version 1.19.2, there were several SIGABRTs
in the vault tests. These were related to a missing `pthread_create`
syscall in Docker. Since CI was using a much older version of Docker,
the fix was to bump it to latest-1 (20.10.17).
While we're at it, add a note in the developer docs encouraging the use
of the latest Docker version.
Update Go to 1.18
From 1.17.12
1.18.5 was just released, but not all packages have been updated, so I
went with 1.18.4
Co-authored-by: Steven Clark <steven.clark@hashicorp.com>
