Decorator auto accessors syntax is not supported

### Which packages are impacted by your issue?

@graphql-codegen/cli

### Describe the bug

The codegen CLI does not seem to be compatible with the `accessor` syntax:

```
@observable.ref
accessor data: Workspace;
```

Output:

```
✔ Parse Configuration
⚠ Generate outputs
❯ Generate to ./gen/
✔ Load GraphQL schemas
✖ This experimental syntax requires enabling the parser plugin: "decoratorAutoAccessors". (42:11)
◼ Generate
```

Configuration:

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

const config: CodegenConfig = {
schema: "http://localhost:3000/graphql",
// this assumes that all your source files are in a top-level `src/` directory - you might need to adjust this to your file structure
documents: [
"src/**/*.{ts,tsx}",
],
generates: {
"./gen/": {
preset: "client",
plugins: [],
presetConfig: {
gqlTagName: "gql",
},
},
},
// ignoreNoDocuments: true,
};

export default config;
```

### Your Example Website or App

No

### Steps to Reproduce the Bug or Issue

No

### Expected behavior

Syntax supported

### Screenshots or Videos

_No response_

### Platform

"@graphql-codegen/cli": "^5.0.2",

### Codegen Config File

_No response_

### Additional context

_No response_