Remove wrong 404 status code for getAllSubmodelDescriptors (#617)

* Removes wrong 404 status code for getAllSubmodelDescriptors

* Readds incorrectly removed Status Code in entire api collection

---------

Co-authored-by: sebbader-sap <107036549+sebbader-sap@users.noreply.github.com>

Author: aaronzi

Entire-API-Collection/V3.1.yaml

@@ -6954,8 +6954,6 @@ paths:
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/bad-request'
         '403':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/forbidden'
-        '404':
-          $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/not-found'
         '500':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/internal-server-error'    
         default:

SubmodelRegistryServiceSpecification/V3.1_SSP-001.yaml

@@ -39,8 +39,6 @@ paths:
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/bad-request'
         '403':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/forbidden'
-        '404':
-          $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/not-found'
         '500':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/internal-server-error'    
         default:

SubmodelRegistryServiceSpecification/V3.1_SSP-002.yaml

@@ -39,8 +39,6 @@ paths:
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/bad-request'
         '403':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/forbidden'
-        '404':
-          $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/not-found'
         '500':
           $ref: 'https://api.swaggerhub.com/domains/Plattform_i40/Part2-API-Schemas/V3.1.2#/components/responses/internal-server-error'    
         default:

documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc

@@ -21,6 +21,7 @@ Minor Changes:
 * Fixed the response payload type of `PutSubmodelById` in the Asset Administration Shell Repository OpenAPI files: status code `201` now returns a `Submodel` instead of a `Reference`. (https://github.com/admin-shell-io/aas-specs-api/issues/601[#601])
 * Updated the response contract of `PostAllAssetLinksById` in Discovery OpenAPI files by removing status code `404` for `POST /lookup/shells/{aasIdentifier}` to align with create-or-replace semantics. (https://github.com/admin-shell-io/aas-specs-api/issues/595[#595])
 * Updated the response contract of `PostAllAssetLinksById` in Discovery OpenAPI files by removing status code `409` for `POST /lookup/shells/{aasIdentifier}` to align with replace/update behavior on repeated payloads. (https://github.com/admin-shell-io/aas-specs-api/issues/596[#596])
+* Updated the response contract of `GetAllSubmodelDescriptors` in Submodel Registry OpenAPI files by removing status code `404` for `GET /submodel-descriptors`, so an empty collection is consistently represented by `200` with an empty result. (https://github.com/admin-shell-io/aas-specs-api/issues/597[#597])
 
 
 == Changes w.r.t. V3.1.1 to V3.1.2