Support hhmm timezone format (#46172)

* Add testcase from https://github.com/metabase/metabase/issues/43915



* Try a custom formatter if the default formatter for OffsetDateTime doesn't work

* Add testcase

* Make auxillary formatter private

* Catch a more specific exception

* Throw IllegalArgumentException on invalid dates

* Use strict resolver and fix test

* Empty commit to assign credit where it's due

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Co-authored-by: Chris Truter <chris@metabase.com>