fix: ODCS to .proto, problem with array of objects

[Schokuroff]

• Tests pass
• ruff format
• README.md updated (if relevant)
•  CHANGELOG.md entry added

[Schokuroff]

schema:
- name: FsaRegister
  logicalType: object
  properties:
  - name: fsa_room
    logicalType: array
    items:
      name: FsaRoom
      logicalType: object
      properties:
      - name: rooms_count
        logicalType: integer
      - name: category_type
        logicalType: string
  - name: simple_array_int
    logicalType: array
    items:
      logicalType: integer
  - name: simple_int
    logicalType: integer
  - name: simple_obj
    logicalType: object
    properties:
    - name: rooms_count
      logicalType: integer
    - name: category_type
      logicalType: string

to

syntax = "proto3";

package example;

message FsaRegister {
message FsaRoom {
    int32 rooms_count = 1;
    string category_type = 2;
  }

message SimpleObj {
    int32 rooms_count = 1;
    string category_type = 2;
  }

  repeated FsaRoom fsa_room = 1;
  repeated int32 simple_array_int = 2;
  int32 simple_int = 3;
  SimpleObj simple_obj = 4;
}

[Schokuroff]

Sorry, I think I forgot to do the ruff and tests, I'll add them now.