refactor(devtools): Remove unnecessary explicit dependency (#22882)

## Description

We do not use `jest-dev-server` directly. Other things depend on it so
it doesn't disappear from the lockfile, but no need for the explicit
direct dependency. I confirmed the jest tests still pass in both
packages.

Author: alexvy86

packages/tools/devtools/devtools-browser-extension/package.json

@@ -129,7 +129,6 @@
 		"good-fences": "^1.1.1",
 		"html-webpack-plugin": "^5.6.0",
 		"jest": "^29.6.2",
-		"jest-dev-server": "^9.0.2",
 		"jest-environment-puppeteer": "^9.0.2",
 		"jest-junit": "^10.0.0",
 		"jest-puppeteer": "^9.0.2",

packages/tools/devtools/devtools-example/package.json

@@ -96,7 +96,6 @@
 		"eslint-plugin-react-hooks": "~4.6.0",
 		"html-webpack-plugin": "^5.6.0",
 		"jest": "^29.6.2",
-		"jest-dev-server": "^9.0.2",
 		"jest-environment-jsdom": "^29.6.2",
 		"jest-environment-puppeteer": "^9.0.2",
 		"jest-junit": "^10.0.0",