Update registry1.dso.mil/ironbank/opensource/php/php Docker tag to v8.3.9

This MR contains the following updates:

Package	Type	Update	Change
registry1.dso.mil/ironbank/opensource/php/php	ironbank-base	minor	8.2.21 -> 8.3.9
registry1.dso.mil/ironbank/opensource/php/php	final	minor	8.2.21 -> 8.3.9

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