Folders with a "=" in the name are ignored.

### Which packages are impacted by your issue?

@graphql-codegen/cli, @graphql-codegen/core, @graphql-codegen/client-preset

### Describe the bug

The generator does not take into account files inside a folder with the character **`=`**

Example: The file **`./src/routes/[[page=int]]/my_queries.ts`** will be ignored by the generator.

However, it is a classic folder pattern if you use sveltekit.

### Your Example Website or App

https://github.com/maarekj/graphql-code-generator-bug

### Steps to Reproduce the Bug or Issue

```
git clone https://github.com/maarekj/graphql-code-generator-bug
cd graphql-code-generator-bug
yarn install
yarn run codegen
```

**output**
```
> yarn run codegen
yarn run v1.22.18
$ graphql-codegen --config codegen.ts
✔ Parse Configuration
⚠ Generate outputs
❯ Generate to src/generated/
✔ Load GraphQL schemas
✖
Unable to find any GraphQL type definitions for the following pointers:
- ./src/**/*.ts
◼ Generate
error Command failed with exit code 1.

```

### Expected behavior

The generator will have to take the file into account. If we move the file inside ./src, everything works.

### Platform

- OS: Linux
- NodeJS: *
- `graphql` version: *
- `@graphql-codegen/cli`: 3.0.0
- `@graphql-codegen/client-preset`: 2.0.0

### Codegen Config File

```typescript
import type { CodegenConfig } from "@graphql-codegen/cli";

const config: CodegenConfig = {
overwrite: true,
schema: "./schema.graphql",
documents: ["./src/**/*.ts"],
generates: {
"src/generated/": {
preset: "client",
plugins: [],
},
},
};

export default config;
```