test: Increase logging levels

Attempt to debug CI failures.

```
FAIL __device-tests__/gutenberg-editor-rendering-media-blocks.test.js (73.496 s)
  ● Gutenberg Editor Rendering Media Blocks test › should be able to render blocks correctly

    unknown method: Not implemented

      at getErrorFromResponseBody (file:/Users/runner/work/gutenberg/gutenberg/node_modules/webdriver/build/utils.js:194:12)
      at NodeJSRequest._request (file:/Users/runner/work/gutenberg/gutenberg/node_modules/webdriver/build/request/index.js:164:23)
      at Browser.wrapCommandFn (file:/Users/runner/work/gutenberg/gutenberg/node_modules/@wdio/utils/build/shim.js:81:29)
```

packages/react-native-editor/__device-tests__/helpers/utils.js

@@ -174,7 +174,7 @@ const setupDriver = async () => {
 
  const driver = await remote( {
  ...serverConfig,
- logLevel: 'error',
+ logLevel: 'debug',
  capabilities: {
  platformName: PLATFORM_NAME,
  ...prefixKeysWithAppium( desiredCaps ),