Update gems

This MR contains the following updates:

Package	Type	Update	Change
elasticsearch (source, changelog)	ironbank-rubygem	minor	7.8.0 -> 7.9.0
fluentd (source)	ironbank-rubygem	patch	1.11.1 -> 1.11.2
json (source, changelog)	ironbank-rubygem	patch	2.3.0 -> 2.3.1
oj (source, changelog)	ironbank-rubygem	patch	3.10.5 -> 3.10.12
oj		patch	3.10.8 -> 3.10.12

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