Update dependency strimzi/strimzi-kafka-bridge to v0.21.4

This MR contains the following updates:

Package	Type	Update	Change
strimzi/strimzi-kafka-bridge	ironbank-github	patch	0.21.3 -> 0.21.4

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Release Notes

strimzi/strimzi-kafka-bridge

v0.21.4

Compare Source

• Dependency updates (Configuration providers, Vert.x, Netty, Oauth client and more)
• Add support for disabling the FIPS mode in OpenJDK
• Add transactions isolation.level configuration parameter on consumer creation
• Support for s390x platform

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