Fix parsing of `direnv export json` to support unset of environment variables + better logging (#32559)

Release Notes:

- Fixed parsing of `direnv export json` output to support unset of
environment variables.
027ce6889cMichael Sloan committed on 6/11/2025, 5:57:30 PM· committed by GitHubparent65a1d09
2 files changedLine totals unavailable