chore(deps-dev): bump @types/basic-auth from 1.1.4 to 1.1.5 (#618)

Bumps [@types/basic-auth](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/basic-auth) from 1.1.4 to 1.1.5.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/basic-auth)

---
updated-dependencies:
- dependency-name: "@types/basic-auth"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -23,7 +23,7 @@
   "author": "Ryo Ota <[email protected]> (https://github.com/nwtgck)",
   "license": "MIT",
   "devDependencies": {
-    "@types/basic-auth": "^1.1.4",
+    "@types/basic-auth": "^1.1.5",
     "@types/cookie": "^0.5.3",
     "@types/js-yaml": "^4.0.8",
     "@types/koa-router": "^7.4.6",