Merge branch 'master' of ssh+git://datacharmer.github.com/datacharmer…

…/dbdeployer

Fix go-unit-tests.sh script

Skip some tests on Github actions

Fix complaints for "gosec" in tests

Fix issue #156

* Unquoted directory names cause failures in shell scripts with
  `cd` command

Remove menagerie from data-load tests

Not all MySQL downloads include `mysqlimport`, which is needed
to install the menagerie database

fix error in cleanup procedure

add universal binaries to release

add arm64 binaries

Add option --retries-on-failure to downloads

Commands `get`, `get-by-version`, `get-unpack`, and `import` now can
set the number of retries on failure.