Request to expand the range of allowed release dates during release months

[adamfarley]

The releaseTrigger_jdkNN job Jenkins schedule is set to run on dates from 10-25th of release months.

With the new upstream release day of month, the 10th might not be early enough to allow to pickup dryrun triggers.

Example: In the April release, we were unable to release on the 9th.

Original comment from @andrew-m-leonard :
adoptium/temurin#74 (comment)