[FLINK-36767] Bumped cyclonedx-maven-plugin to 2.9.1 to resolve CVE-2024-38374

[vivek807]

What is the purpose of the change

Bumped cyclonedx-maven-plugin to 2.9.1 to resolve the vulnerability CVE-2024-38374

Brief change log

Updated cyclonedx-maven-plugin version to 2.9.1 in parent pom.xml to resolve vulnerability CVE-2024-38374.

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): yes
• The public API, i.e., is any changed class annotated with @public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, - - ZooKeeper: no
• The S3 file system connector. no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[flinkbot]

CI report:

• 8a184f1 Azure: SUCCESS

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