This patch includes an update to direnv. As part of the updated a few
extra changes were necessary to support the new version:

- Addition of go-golang-org-x-mod as a new dependency.
- Removal of the delete-vendor step since direnv no longer depends on
vendor files.
- Removal of the test run. The new tests depend on
https://github.com/golangci/golangci-lint which requires a lot of othe
dependencies. Since it's only needed for tests, maybe we can handle it
in a separate patch or once golangci-lint becomes needed in other
places.