ci: openapi errors

[Maxcastel]

Fix the following errors:

build/out/openapi/openapi_v3.yaml:156186:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156202:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests-read'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156218:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests-write'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156234:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests-write.jsonMergePatch'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156250:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests.graphql-read'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156266:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests.html-read'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156345:15  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests.jsonld-read'].allOf[1].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156361:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests.multipart-read'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:156377:11  ✗           `maxLength` constraint is only applicable to string types, not `[]` 
$.components.schemas['BagOfTests.xml-read'].properties['description'].maxLength
rule: oas-schema-check  category: Schemas

build/out/openapi/openapi_v3.yaml:175381:13  ✗           `allOf` property `status` declared as [string, number, null]: properties defined across an `allOf` composition must have a non-empty common valid type
$.components.schemas['Error.jsonapi'].properties['errors'].items.allOf
rule: allof-conflicts  category: Schemas

 category              ✗ errors      ▲ warnings    ● info                                                  
 ────────────────────  ────────────  ────────────  ────────────────────────────────────────────────────────
 Schemas               10            0             0                                                       
 ────────────────────  ────────────  ────────────  ────────────────────────────────────────────────────────
 total                 10            0             0                                                       

 rule                                      violations    quality impact                                    
 ────────────────────────────────────────  ────────────  ──────────────────────────────────────────────────
 oas-schema-check                          9             ██████████████████████████████████████████████████
 allof-conflicts                           1             █████                                             
 ────────────────────────────────────────  ────────────  ──────────────────────────────────────────────────
 total                                     10          

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 | Quality Score: 10/100 [🥵]

 | ✗ Failed with 10 errors, 0 warnings and 0 informs.

[soyuka]

thanks!