message: bump service-load-test old dependencies
diff: "mocha-junit-reporter": "^1.18.0",
  "nock": "^10.0.1",
  "nyc": "^15.0.0",
  - "old-aqueduct": "npm:@fluidframework/aqueduct@^0.20.0",
  - "old-container-definitions": "npm:@fluidframework/container-definitions@^0.20.0",
  - "old-container-loader": "npm:@fluidframework/container-loader@^0.20.0",
  - "old-runtime-definitions": "npm:@fluidframework/runtime-definitions@^0.20.0",
  - "old-test-utils": "npm:@fluidframework/test-utils@^0.20.0",
  + "old-aqueduct": "npm:@fluidframework/aqueduct@^0.21.0",
  + "old-container-definitions": "npm:@fluidframework/container-definitions@^0.21.0",
  + "old-container-loader": "npm:@fluidframework/container-loader@^0.21.0",
  + "old-runtime-definitions": "npm:@fluidframework/runtime-definitions@^0.21.0",
  + "old-test-utils": "npm:@fluidframework/test-utils@^0.21.0",
  "rimraf": "^2.6.2",
  "ts-loader": "^6.1.2",
  "typescript": "~3.7.4",
  