Fix JsonSchemaGenerator to handle StructInfo with same alias and name

[JonathanSawyer]

Motivation:

• The StructInfo alias has the same value as the name causing a duplicate key exception when building typeSignatureToStructMappingBuilder.
• Occurred when setting up a HTTP service which consumes protobuf messages

Modifications:

• Checks that the struct and alias don't have the same name to avoid duplicate key exception (alias is created here https://github.com/line/armeria/blob/main/protobuf/src/main/java/com/linecorp/armeria/server/protobuf/ProtobufDescriptiveTypeInfoProvider.java#L106)

Result:

• Improves the JsonSchemaGenerator.java for the documentation service by allowing resources to have the same alias and name as is the default behavior of https://github.com/line/armeria/blob/main/protobuf/src/main/java/com/linecorp/armeria/server/protobuf/ProtobufDescriptiveTypeInfoProvider.java#L106

[CLAassistant]

All committers have signed the CLA.

[github-actions[bot]]

🔍 Build Scan® (commit: 1587303119e0bdf8dc826a538b90c25178d508cd)

Job name	Status	Build Scan®
build-windows-latest-jdk-21	✅	https://ge.armeria.dev/s/qzpfop5luazps
build-self-hosted-unsafe-jdk-8	✅	https://ge.armeria.dev/s/hhxwtegbr6qog
build-self-hosted-unsafe-jdk-21-snapshot-blockhound	✅	https://ge.armeria.dev/s/vz7yi74ponhsg
build-self-hosted-unsafe-jdk-17-min-java-17-coverage	✅	https://ge.armeria.dev/s/b2ulfgvfrd7es
build-self-hosted-unsafe-jdk-17-min-java-11	✅	https://ge.armeria.dev/s/l3qu3btsl3rui
build-self-hosted-unsafe-jdk-17-leak	✅	https://ge.armeria.dev/s/uuvn7se5r23xi
build-self-hosted-unsafe-jdk-11	✅	https://ge.armeria.dev/s/2hfoja7st3nno
build-macos-12-jdk-21	✅	https://ge.armeria.dev/s/2ubudiudyehru

[JonathanSawyer]

@jrhee17 I was wondering whether this could be added to the 1.29.1 milestone?

[trustin]

Sorry I'm late and thanks for the fix, @JonathanSawyer! 🙇

[JonathanSawyer]

Tested and working 🙇