fix(devkit): remove nx as direct dependency (#32614)

## Current Behavior

The `@nx/devkit` package has `nx` as a direct dependency.

## Expected Behavior

The `@nx/devkit` package should not have `nx` as a direct dependency.

Author: leosvelperez

packages/devkit/package.json

@@ -35,8 +35,7 @@
     "semver": "^7.5.3",
     "yargs-parser": "21.1.1",
     "minimatch": "9.0.3",
-    "enquirer": "~2.3.6",
-    "nx": "workspace:*"
+    "enquirer": "~2.3.6"
   },
   "devDependencies": {
     "jest": "^29.4.1",

packages/gradle/package.json

@@ -36,9 +36,11 @@
   },
   "dependencies": {
     "@nx/devkit": "workspace:*",
-    "nx": "workspace:*",
     "toml-eslint-parser": "^0.10.0"
   },
+  "devDependencies": {
+    "nx": "workspace:*"
+  },
   "publishConfig": {
     "access": "public"
   },