[tests] Fix jest-haste-map: Haste module naming collision (#9317)

```
jest-haste-map: Haste module naming collision: app-three
The following files share their name; please adjust your hasteImpl:
  * <rootDir>/test/fixtures/33-hybrid-monorepo/backend/app-three/package.json
  * <rootDir>/test/fixtures/34-monorepo-no-workspaces/backend/app-three/package.json
```

packages/static-build/test/build-fixtures/02-gatsby-user-config/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-starter-default",
   "private": true,
   "description": "A simple starter to get up and developing quickly with Gatsby",
   "version": "0.1.0",

packages/static-build/test/build-fixtures/03-gatsby-with-plugins/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-starter-default",
   "private": true,
   "description": "A simple starter to get up and developing quickly with Gatsby",
   "version": "0.1.0",

packages/static-build/test/fixtures/gatsby-v2/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-v2",
   "private": true,
   "dependencies": {
     "gatsby": "2.32.13",

packages/static-build/test/fixtures/gatsby-v3/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-v3",
   "private": true,
   "dependencies": {
     "gatsby": "3.15.0",

packages/static-build/test/fixtures/gatsby-v4-pnpm/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-v4",
   "private": true,
   "dependencies": {
     "gatsby": "4.25.2",

packages/static-build/test/fixtures/gatsby-v4/package.json

@@ -1,5 +1,4 @@
 {
-  "name": "gatsby-v4",
   "private": true,
   "dependencies": {
     "gatsby": "4.25.2",

packages/static-build/test/fixtures/gatsby-v5/package.json

@@ -1,12 +1,5 @@
 {
-  "name": "gatsby-v5",
-  "version": "1.0.0",
   "private": true,
-  "description": "gatsby-v5",
-  "author": "Ethan Arrowood",
-  "keywords": [
-    "gatsby"
-  ],
   "scripts": {
     "develop": "gatsby develop",
     "start": "gatsby develop",