Fix influxdb_user grants in check mode (#6111)
* Fix influxdb_user grants in check mode
When running in check mode, `influxdb_user` will return error when the user doesn't exist yet, instead of reporting `changed` state.
* Update changelogs/fragments/6111-influxdb_user-check-mode.yaml
Co-authored-by: Felix Fontein <felix@fontein.de>
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Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit 3fb1ff0b72)
Co-authored-by: Petr Tichý <petr@pex.com>
