chore: bump undici from 6.19.7 to 6.19.8 (#3117)

Bumps [undici](https://github.com/nodejs/undici) from 6.19.7 to 6.19.8.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.19.7...v6.19.8)

---
updated-dependencies:
- dependency-name: undici
  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>

packages/fetch-impl/package.json

@@ -7,6 +7,6 @@
     },
     "devDependencies": {
         "tinybench": "^2.9.0",
-        "undici": "^6.19.7"
+        "undici": "^6.19.8"
     }
 }

packages/rpc-transport-http/package.json

@@ -70,7 +70,7 @@
     },
     "devDependencies": {
         "tinybench": "^2.9.0",
-        "undici": "^6.19.7",
+        "undici": "^6.19.8",
         "zx": "^8.1.4"
     },
     "peerDependencies": {

packages/test-config/package.json

@@ -8,12 +8,12 @@
     ],
     "peerDependencies": {
         "jest-dev-server": "^10.0.0",
-        "undici": "^6.19.7",
+        "undici": "^6.19.8",
         "whatwg-fetch": "^3.6.20"
     },
     "devDependencies": {
         "@jest/types": "^29.6.3",
-        "undici": "^6.19.7",
+        "undici": "^6.19.8",
         "whatwg-fetch": "^3.6.20"
     }
 }