update generate:api:services-app-backend yarn script

package.json

@@ -51,7 +51,7 @@
     "generate:api:pagopaproxy": "rimraf generated/pagopa-proxy && gen-api-models --api-spec https://raw.githubusercontent.com/pagopa/io-pagopa-proxy/v1.6.0/api-spec/api-for-io.yaml --no-strict --out-dir generated/pagopa-proxy --request-types --response-decoders --client",
     "generate:api:lollipop": "rimraf generated/lollipop-api && gen-api-models --api-spec https://raw.githubusercontent.com/pagopa/io-functions-lollipop/724c3ba79d272d4e2555dbc2a8e1657bec9f84ce/openapi/internal.yaml --no-strict --out-dir generated/lollipop-api --request-types --response-decoders --client",
     "generate:api:fast-login": "rimraf generated/fast-login-api && gen-api-models --api-spec https://raw.githubusercontent.com/pagopa/io-functions-fast-login/2ee351b69fdea2ffab3c3f3ed4dc55c94a024dc7/api/internal.yaml --no-strict --out-dir generated/fast-login-api --request-types --response-decoders --client",
-    "generate:api:services-app-backend": "rimraf generated/services-app-backend && gen-api-models --api-spec https://raw.githubusercontent.com/pagopa/io-services-cms/65fa1ea11e9736a89ebfa40d2240c5500ef62783/apps/app-backend/api/internal.yaml --no-strict --out-dir generated/services-app-backend --request-types --response-decoders --client",
+    "generate:api:services-app-backend": "rimraf generated/services-app-backend && gen-api-models --api-spec https://github.com/pagopa/io-services-cms/blob/ae2a0a982e15b3808708a3163330d4da8301777d/apps/app-backend/api/internal.yaml --no-strict --out-dir generated/services-app-backend --request-types --response-decoders --client",
     "generate:proxy:eucovidcert-models": "rimraf generated/eucovidcert && gen-api-models --api-spec api_eucovidcert.yaml --out-dir generated/eucovidcert",
     "generate:proxy:mitvoucher": "rimraf generated/mitvoucher && gen-api-models --api-spec api_mit_voucher.yaml --out-dir generated/mitvoucher",
     "generate:proxy:zendesk-models": "rimraf generated/zendesk && gen-api-models --api-spec api_zendesk.yaml --out-dir generated/zendesk",