Change year max digits for strict_date_optional_time and date_optional_time backports(#73034)

[pgomulka]

We changed the default joda behaviour in strict_date_optional_time to
max 4 digits in a year. Java.time implementation should behave the same way.
At the same time date_optional_time should have 9digits for year part.

closes #52396
closes #72191
backports #73034

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[elasticmachine]

Pinging @elastic/es-core-infra (Team:Core/Infra)