Make subpackage recursion explicit in the Jackson JAX-RS JSON rename

[timtebeek]

com.fasterxml.jackson.jaxrs.json → com.fasterxml.jackson.jakarta.rs.json in jakarta-ee-9.yml omits recursive while depending on it, so types in the .annotation subpackage were never migrated.

Verified against the published artifacts — jackson-jaxrs-json-provider 2.14.3 → jackson-jakarta-rs-json-provider 2.15.4:

old	new
com.fasterxml.jackson.jaxrs.json.annotation	com.fasterxml.jackson.jakarta.rs.json.annotation

The subpackage maps exactly under prefix substitution, so recursion is both safe and required here.

I audited the other 18 recursive-omitting rules in this repo the same way (the DataNucleus set, org.apache.shiro.codec, javax.annotation.security / .sql, javax.security.cert, org.apache.commons.fileupload2.jakarta.servlet5, …) and they are all leaf packages, so this is the only one that needs changing. Two are deliberately left non-recursive because recursion would be wrong: com.alibaba.fastjson → com.alibaba.fastjson2 (only .annotation has a counterpart; fastjson2 has no .parser / .serializer / .support.*), and com.sun.net.ssl → javax.net.ssl (no .internal counterpart).

Why the tests didn't catch this

ChangePackage.recursive is @Nullable with required = false and no documented default, and a null was read two different ways inside the same recipe: non-recursive by its preconditions, recursive by its visitor. The upshot is that a subpackage type gets renamed only if the file also references a type sitting directly in oldPackageName — which every existing fixture happens to do. A real source file importing only the subpackage type was never migrated.

• So this is a latent bug being fixed, not a test fixup. Make a null recursive consistently mean non-recursive in ChangePackage rewrite#8382 settles null as non-recursive, which is what surfaced it; I found this while auditing declarative ChangePackage usages against the published artifacts.

Verification

• Full ./gradlew test green. Each new test fails without the recursive: true line and passes with it. Correct on its own merits and safe to merge now, independently of rewrite#8382.