message: removing bitbucket and external tfs endpoint contributions as they are defined as system contributions
diff: "id": "vss-services-bitbucket",
  "name": "Bitbucket artifacts for Release Management",
  "publisher": "ms-vscs-rm",
  - "version": "15.136.1",
  + "version": "15.141.0",
  "public": true,
  "description": "Tools related to connecting with Bitbucket",
  "_description.comment": "The below format to define artifact extensions is currently in preview and may change in future.",
  "name": "Tasks/DownloadArtifactsBitbucket"
  }
  },
  - {
  - "id": "bitbucket-endpoint-type",
  - "description": "Service Endpoint type for all Bitbucket connections",
  - "_description.comment": "Don't Localize the word 'Bitbucket'",
  - "type": "ms.vss-endpoint.service-endpoint-type",
  - "targets": [ "ms.vss-endpoint.endpoint-types" ],
  - "properties": {
  - "name": "bitbucket",
  - "displayName": "Bitbucket",
  - "url": {
  - "displayName": "Server Url",
  - "value": "https://api.bitbucket.org/",
  - "helpText": ""
  - },
  - "dataSources": [
  - {
  - "name": "TestConnection",
  - "endpointUrl": "{{{endpoint.url}}}2.0/repositories?role=member&pagelen=100",
  - "resultSelector": "jsonpath:$.values[*]"
  - },
  - {
  - "name": "Repositories",
  - "endpointUrl": "{{{endpoint.url}}}2.0/repositories?role=member&pagelen=100",
  - "resultSelector": "jsonpath:$.values[*]"
  - },
  - {
  - "name": "Branches",
  - "endpointUrl": "{{{endpoint.url}}}2.0/repositories/{{{definition}}}/refs/branches",
  - "resultSelector": "jsonpath:$.values[*]"
  - },
  - {
  - "name": "Commits",
  - "endpointUrl": "{{{endpoint.url}}}2.0/repositories/{{{definition}}}/commits/{{{branch}}}",
  - "resultSelector": "jsonpath:$.values[*]"
  - },
  - {
  - "name": "LatestCommit",
  - "endpointUrl": "{{{endpoint.url}}}2.0/repositories/{{{definition}}}/commits/{{{branch}}}",
  - "resultSelector": "jsonpath:$.values[0]"
  - }
  - ],
  - "authenticationSchemes": [
  - {
  - "type": "ms.vss-endpoint.endpoint-auth-scheme-basic",
  - "inputDescriptors": [
  - {
  - "id": "username",
  - "name": "Username",
  - "description": "Username",
  - "inputMode": "textbox",
  - "isConfidential": false,
  - "validation": {
  - "isRequired": true,
  - "dataType": "string"
  - }
  - },
  - {
  - "id": "password",
  - "name": "Password",
  - "description": "Password",
  - "inputMode": "passwordbox",
  - "isConfidential": true,
  - "validation": {
  - "isRequired": true,
  - "dataType": "string"
  - }
  - }
  - ]
  - }
  - ],
  - "helpMarkDown": "<a href=\"https://msdn.microsoft.com/Library/vs/alm/Release/author-release-definition/understanding-tasks#serviceconnections\" target=\"_blank\"><b>Learn More</b></a>"
  - }
  - },
  {
  "id": "bitbucket-release-artifact-type",
  "description": "Bitbucket Artifact",
  