NIFI-14228 Remove fallback Sensitive Properties Key from Commands

[exceptionfactory]

Summary

NIFI-14228 Removes the historical fallback Sensitive Properties Key from the set-sensitive-properties-key and set-sensitive-properties-algorithm commands, throwing an exception when it is not configured in nifi.properties.

This reflects the previous approach implemented for NiFi 1, before automatic key generation was implemented. NiFi 2 removed support for a blank Sensitive Properties Key, so these commands do not need to have the fallback value implemented.

Changes include updating unit tests to expect failures for a blank key.

Tracking

Please complete the following tracking steps prior to pull request creation.

Issue Tracking

• Apache NiFi Jira issue created

Pull Request Tracking

• Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
• Pull Request commit message starts with Apache NiFi Jira issue number, as such NIFI-00000

Pull Request Formatting

• Pull Request based on current revision of the main branch
• Pull Request refers to a feature branch with one commit containing changes

Verification

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Build

• Build completed using mvn clean install -P contrib-check
  • JDK 21

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
• New dependencies are documented in applicable LICENSE and NOTICE files

Documentation

• Documentation formatting appears as expected in rendered files

[pvillard31]

Thanks for taking care of this @exceptionfactory and to make the build work on Windows!