Fixes wrong status code for PUT AssetInformation (#865)

* Fixes wrong status code for PUT AssetInformation

* Fixes failing tests

Author: aaronzi

basyx.aasrepository/basyx.aasrepository-feature-authorization/src/test/java/org/eclipse/digitaltwin/basyx/aasrepository/feature/authorization/TestAuthorizedAasRepository.java

@@ -474,7 +474,7 @@ public void setAssetInformationWithCorrectRoleAndPermission() throws IOException
 		String accessToken = getAccessToken(DummyCredentialStore.BASYX_ASSET_UPDATER_CREDENTIAL);
 
 		CloseableHttpResponse retrievalResponse = updateElementWithAuthorizationPutRequest(getSpecificAssetInformationAccessURL(SPECIFIC_SHELL_ID_2), getAasJSONString("assetInfoSimple.json"), accessToken);
-		assertEquals(HttpStatus.OK.value(), retrievalResponse.getCode());
+		assertEquals(HttpStatus.NO_CONTENT.value(), retrievalResponse.getCode());
 
 		deleteElementWithAuthorization(getSpecificAasAccessURL(SPECIFIC_SHELL_ID_2), getAccessToken(DummyCredentialStore.ADMIN_CREDENTIAL));
 	}
@@ -486,7 +486,7 @@ public void setAssetInformationWithCorrectRoleAndSpecificAasPermission() throws
 		String accessToken = getAccessToken(DummyCredentialStore.BASYX_ASSET_UPDATER_TWO_CREDENTIAL);
 
 		CloseableHttpResponse retrievalResponse = updateElementWithAuthorizationPutRequest(getSpecificAssetInformationAccessURL(SPECIFIC_SHELL_ID_2), getAasJSONString("assetInfoSimple.json"), accessToken);
-		assertEquals(HttpStatus.OK.value(), retrievalResponse.getCode());
+		assertEquals(HttpStatus.NO_CONTENT.value(), retrievalResponse.getCode());
 
 		deleteElementWithAuthorization(getSpecificAasAccessURL(SPECIFIC_SHELL_ID_2), getAccessToken(DummyCredentialStore.ADMIN_CREDENTIAL));
 	}

basyx.aasrepository/basyx.aasrepository-http/src/main/java/org/eclipse/digitaltwin/basyx/aasrepository/http/AasRepositoryApiHTTPController.java

@@ -180,7 +180,7 @@ public ResponseEntity<AssetInformation> getAssetInformationAasRepository(Base64U
 	@Override
 	public ResponseEntity<Void> putAssetInformationAasRepository(Base64UrlEncodedIdentifier aasIdentifier, @Valid AssetInformation body) {
 		aasRepository.setAssetInformation(aasIdentifier.getIdentifier(), body);
-		return new ResponseEntity<Void>(HttpStatus.OK);
+		return new ResponseEntity<Void>(HttpStatus.NO_CONTENT);
 	}
 
 	private String getEncodedCursorFromCursorResult(CursorResult<?> cursorResult) {