Address deprecation of plugin-types and prefetch-src

[kingthorin]

• Policy > Updated with appropriate deprecation notices and handling.
• Test classes > Updated to assert the new behavior and ignore errors where applicable.

Related to: https://github.com/zaproxy/zaproxy/issues/8077 and https://github.com/zaproxy/zap-extensions/pull/4950

[kingthorin]

Thanks, will get working on the next one.

[rbri]

Thanks for the contribution, 3.10.0-SNAPSHOT is available (https://s01.oss.sonatype.org/content/repositories/snapshots).

Maybe you can provide your full name for the list of contributors....

[kingthorin]

Rick Mitchell