alternative to #3806
the idea is that both `context.New` and `context.Context{}` are never
used in tests.
not sure yet how much I like it, so far code does look a bit more
readable though.
---------
Signed-off-by: Carlos A Becker <caarlos0@users.noreply.github.com>
This prevents one announce failure to skip all other announcers.
The release will still report a failure in the end, but will not fail in
the first failure.
Also improved errors messages a little bit.
closes#3663
Signed-off-by: Carlos A Becker <caarlos0@users.noreply.github.com>