Fixes tests and upgrades base jenkins to 2.387.3

[froque]

Tests failed due to class jakarta.annotation.PostConstruct not being found.

This is because ssc-restapi-client depends on jakarta.annotation-api v1 overriding jenkins depending on jakarta.annotation-api v2.

jakarta.annotation-api v2 uses jakarta package and v1 uses the old javax package.

Adding an exclusion for jakarta.annotation:jakarta.annotation-api resolves this, but now fails with:

java.lang.IllegalStateException: Couldn't locate either of bouncy castle FIPS or non fips provider, available providers areSUN,SunRsaSign,SunEC,SunJSSE,SunJCE,SunJGSS,SunSASL,XMLDSig,SunPCSC,JdkLDAP,JdkSASL,SunPKCS11. at jenkins.bouncycastle.api.PEMEncodable.(PEMEncodable.java:96)

Bumping base jenkins to 2.387.3 and parent pom to 4.66 resolves this.

https://github.com/jenkinsci/jenkins/pull/6161 https://github.com/jenkinsci/bouncycastle-api-plugin/pull/46/

Testing done

### Submitter checklist
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[akaryakina]

@froque Thank you VERY MUCH! Examining all the exceptions occurring in tests is brilliant!

[renyiwei-xinyi]

nice! this issue helped me