Update jaegertracing/jaeger-operator Docker tag to v1.21.2

This MR contains the following updates:

Package	Type	Update	Change
jaegertracing/jaeger-operator	ironbank-docker	patch	1.21.1 -> 1.21.2
jaegertracing/jaeger-operator		patch	1.21.1 -> 1.21.2
jaegertracing/jaeger-operator	stage	patch	1.21.1 -> 1.21.2

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