build(deps): bump koa from 2.15.3 to 2.15.4 (#5220)

Bumps [koa](https://github.com/koajs/koa) from 2.15.3 to 2.15.4.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/2.15.4/History.md)
- [Commits](koajs/koa@2.15.3...2.15.4)

---
updated-dependencies:
- dependency-name: koa
  dependency-type: indirect
...

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

yarn.lock

@@ -1910,11 +1910,9 @@
 
 "@lwc/eslint-plugin-lwc-internal@link:./scripts/eslint-plugin":
   version "0.0.0"
-  uid ""
 
 "@lwc/test-utils-lwc-internals@link:./scripts/test-utils":
   version "0.0.0"
-  uid ""
 
 "@napi-rs/wasm-runtime@0.2.4":
   version "0.2.4"
@@ -8307,9 +8305,9 @@ koa-static@^5.0.0:
     koa-send "^5.0.0"
 
 koa@^2.11.0:
-  version "2.15.3"
-  resolved "https://registry.yarnpkg.com/koa/-/koa-2.15.3.tgz#062809266ee75ce0c75f6510a005b0e38f8c519a"
-  integrity sha512-j/8tY9j5t+GVMLeioLaxweJiKUayFhlGqNTzf2ZGwL0ZCQijd2RLHK0SLW5Tsko8YyyqCZC2cojIb0/s62qTAg==
+  version "2.15.4"
+  resolved "https://registry.yarnpkg.com/koa/-/koa-2.15.4.tgz#7000b3d8354558671adb1ba1b1c09bedb5f8da75"
+  integrity sha512-7fNBIdrU2PEgLljXoPWoyY4r1e+ToWCmzS/wwMPbUNs7X+5MMET1ObhJBlUkF5uZG9B6QhM2zS1TsH6adegkiQ==
   dependencies:
     accepts "^1.3.5"
     cache-content-type "^1.0.0"