message: Update yarn lock.
diff: to-fast-properties "^2.0.0"
  "@backstage/catalog-model@^0.2.0":
  - version "0.2.0"
  - resolved "https://registry.npmjs.org/@backstage/catalog-model/-/catalog-model-0.2.0.tgz#e3fe2a4ddeb6a9b6ec480c80cb2b9c39cb245576"
  - integrity sha512-Y1ocdRpBlxK/VrJQjHlQd0bgADECd1B2NRjwd8ss46ibT5hwLvMOfD80+Fa7oPLu0ktJrH4lq0pNIIJIml48zA==
  + version "0.6.1"
  dependencies:
  - "@backstage/config" "^0.1.1"
  + "@backstage/config" "^0.1.2"
  "@types/json-schema" "^7.0.5"
  "@types/yup" "^0.29.8"
  json-schema "^0.2.5"
  yup "^0.29.3"
  "@backstage/catalog-model@^0.3.0":
  - version "0.3.1"
  - resolved "https://registry.npmjs.org/@backstage/catalog-model/-/catalog-model-0.3.1.tgz#45d08e2f333c9c566b2bf2629fd707fe989bb404"
  - integrity sha512-9XhV7c4rmVW+Yzj2PiwTQ7DsegWGB3C4ELsDRExuEVZONdqNcC02cyJtrt3fT5F31ZS3tHkB9bMUymFOBLqUSA==
  + version "0.6.1"
  dependencies:
  - "@backstage/config" "^0.1.1"
  + "@backstage/config" "^0.1.2"
  "@types/json-schema" "^7.0.5"
  "@types/yup" "^0.29.8"
  json-schema "^0.2.5"
  yup "^0.29.3"
  "@backstage/core@^0.3.0":
  - version "0.3.2"
  - resolved "https://registry.npmjs.org/@backstage/core/-/core-0.3.2.tgz#a8209126d5076cf4a8b9bd632fe4e5e2edb62916"
  - integrity sha512-i5d+Wh8js4qEWoAsPY5L7HVSWpumr1OhfF2dUCGYdyW6AMqVJPca6+n6zp1Rg2CO+J9norp44XAVVCbyhtUpig==
  + version "0.4.4"
  dependencies:
  - "@backstage/config" "^0.1.1"
  - "@backstage/core-api" "^0.2.1"
  - "@backstage/theme" "^0.2.1"
  + "@backstage/config" "^0.1.2"
  + "@backstage/core-api" "^0.2.8"
  + "@backstage/theme" "^0.2.2"
  "@material-ui/core" "^4.11.0"
  "@material-ui/icons" "^4.9.1"
  "@material-ui/lab" "4.0.0-alpha.45"
  "@types/dagre" "^0.7.44"
  + "@types/prop-types" "^15.7.3"
  "@types/react" "^16.9"
  "@types/react-sparklines" "^1.7.0"
  classnames "^2.2.6"
  