v1.35.1

Full Changelog: v1.34.2...v1.35.1

Maintenance:

• CL/606755: all: remove unused purego support
• CL/608316: all: set Go language version to Go 1.21

User-visible changes:

• CL/587536: protojson: include field name in error messages
• CL/597055: compiler/protogen: always report editions support level of the plugin
• CL/596539: all: plumb the lazy option into filedesc.Field and .Extension
• CL/601775: types/known/structpb: add support for more types and json.Number
• CL/607995: proto: extend documentation of GetExtension, SetExtension
• CL/609035: proto: implement proto.Equal fast-path

Bug fixes:

• CL/595337: reflect/protodesc: fix handling of delimited extensions in editions
• CL/602055: internal/cmd/generate-protos: fix pkg check for editions features
• CL/603015: internal: generate extension numbers, fix editions parsing