[Dynamic configuration] [Playwright] Can't reconfigure configuration per scenario

#### What are you trying to achieve?
I'm trying to reconfigure browser configuration per scenario

#### What do you get instead?

> Provide console output if related. Use `--verbose` mode for more details.
```bash
CodeceptJS v3.0.4
Helpers: Playwright
Plugins: screenshotOnFail, retryFailedStep, tryTo

Dynamic Configuration --
[1] Starting recording promises
› [Session] Starting singleton browser session
should override browser in config per scenario try#1 @dynamic-configuration
› [Test Config] Playwright {"browser":"firefox"}
I am on page "/"
› [Browser:Warning]
I execute script () => !!window.chrome
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
✔ OK in 3224ms

› [Test Config] Reverted for Playwright
› [Session] cleaning cookies and localStorage
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
should override browser in config per scenario try#2 @dynamic-configuration
› [Test Config] Playwright {"Playwright":{"browser":"firefox"}}
I am on page "/"
› [Browser:Warning]
I execute script () => !!window.chrome
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
✔ OK in 611ms

› [Test Config] Reverted for Playwright
› [Session] cleaning cookies and localStorage
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
should override browser in config per scenario try#3 @dynamic-configuration
› [Test Config] Playwright {"helpers":{"Playwright":{"browser":"webkit"}}}
I am on page "/"
› [Browser:Warning]
I execute script () => !!window.chrome
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@
✔ OK in 552ms

› [Test Config] Reverted for Playwright
› [Session] cleaning cookies and localStorage
› [Browser:Warning] JSHandle@THREE.WebGLProgram: gl.getProgramInfoLog() JSHandle@

OK | 3 passed // 5s
```

> Provide test source code if related

```js
const assert = require('assert');

Feature('Dynamic Configuration');

Scenario('should override browser in config per scenario try#1 @dynamic-configuration', async ({ I }) => {
I.amOnPage('/');
const isChrome = await I.executeScript(() => !!window.chrome);

assert(isChrome, 'should check that browser is chrome');
}).config({"browser": "firefox"});

Scenario('should override browser in config per scenario try#2 @dynamic-configuration', async ({ I }) => {
I.amOnPage('/');
const isChrome = await I.executeScript(() => !!window.chrome);

assert(isChrome, 'should check that browser is chrome');
}).config({"Playwright": {"browser": "firefox"}});

Scenario('should override browser in config per scenario try#3 @dynamic-configuration', async ({ I }) => {
I.amOnPage('/');
const isChrome = await I.executeScript(() => !!window.chrome);

assert(isChrome, 'should check that browser is chrome');
}).config({ "helpers": {"Playwright": {"browser": "webkit"}}});
```

### Details

* CodeceptJS version: v3.0.4
* NodeJS Version: v12.18.3
* Operating System: macOS Catalina 10.15.7
* playwright
* Configuration file:

```js
const { setHeadlessWhen } = require('@codeceptjs/configure');

// turn on headless mode when running with HEADLESS=true environment variable
// export HEADLESS=true && npx codeceptjs run
setHeadlessWhen(process.env.HEADLESS);

exports.config = {
tests: '*/*.e2e-test.js',
output: './output',
helpers: {
Playwright: {
url: 'http://github.com',
show: true,
browser: 'chromium'
}
},
include: {
I: './steps_file.js'
},
bootstrap: null,
mocha: {},
name: 'experiments-with-codeceptjs',
plugins: {
pauseOnFail: {},
retryFailedStep: {
enabled: true
},
tryTo: {
enabled: true
},
screenshotOnFail: {
enabled: true
}
}
}
```

### NOTE:
But it works for the Feature
```js
Feature('Dynamic Configuration').config({"browser": "firefox"})
```

and I can override the configuration in runtime by using `--override` or `-o` option in the command line, passing valid JSON as a value:
```bash
codeceptjs run -o '{ "helpers": {"Playwright": {"browser": "firefox"}}}'
```

Also here is the link to reproduce the issue:
https://github.com/elaichenkov/experiments-with-codeceptjs/blob/main/dynamic-configuration/override-config.e2e-test.js