Bump @babel/preset-typescript from 7.14.5 to 7.15.0

Bumps [@babel/preset-typescript](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-typescript) from 7.14.5 to 7.15.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.15.0/packages/babel-preset-typescript)

---
updated-dependencies:
- dependency-name: "@babel/preset-typescript"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -13,7 +13,7 @@
     "@babel/plugin-transform-modules-umd": "^7.14.5",
     "@babel/preset-env": "^7.14.9",
     "@babel/preset-react": "^7.14.5",
-    "@babel/preset-typescript": "^7.14.5",
+    "@babel/preset-typescript": "^7.15.0",
     "@typescript-eslint/eslint-plugin": "^4.29.0",
     "@typescript-eslint/parser": "^4.29.0",
     "@uupaa/dynamic-import-polyfill": "^1.0.2",
@@ -37,7 +37,7 @@
     "file-loader": "^6.2.0",
     "html-loader": "^2.1.2",
     "html-webpack-plugin": "^5.3.2",
-    "postcss": "^8.3.5",
+    "postcss": "^8.3.6",
     "postcss-loader": "^6.1.1",
     "postcss-preset-env": "^6.7.0",
     "sass": "^1.35.1",