Dependencies update

[vorlif]

Is this a fix, improvement or something else?

Fix and improvement

What does this change implement/fix?

Whenever I try to run xgotext I get an error message:

./xgotext -in fixtures/ -out fixtures/i18n/

internal error: package "errors" without types was imported from "github.com/leonelquinteros/gotext/cli/xgotext/fixtures"

I found this issue and it was recommended to update golang.org/x/tools to an newer version. After doing this, I was able to use xgotext without any problems. I have therefore updated all dependencies.

I also removed dep from the readme as it was marked as deprecated and the repository was archived.

Can we set the minimum Go version to 1.16? https://endoflife.date/go

I have ...

• answered the 2 questions above,
• discussed this change in an issue,
• included tests to cover this changes.