test(turbopack): Modify a webpack-specific assertion (#62028)
### What?
Modify webpack specific assertion to work for turbopack, too.
### Why?
The actual content of CSS files is identical.
Webpack CSS:
```
/*!***************************************************************************************************************************************************************************************************************************************************************************!*\
!*** css ../../../../packages/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[2]!../../../../packages/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[3]!./styles/global.css ***!
\***************************************************************************************************************************************************************************************************************************************************************************/
.bold {
font-weight: bold;
}
/*!***********************************************************************************************************************************************************************************************************************************************************************!*\
!*** css ../../../../packages/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[2]!../../../../packages/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[3]!./app/style.css ***!
\***********************************************************************************************************************************************************************************************************************************************************************/
body {
font-size: large;
}
.not-found {
color: rgb(210, 105, 30);
/* chocolate */
}
```
```
/*!****************************************************************************************************************************************************************************************************************************************************************************!*\
!*** css ../../../../packages/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[2]!../../../../packages/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[11].oneOf[12].use[3]!./app/hmr/global.css ***!
\****************************************************************************************************************************************************************************************************************************************************************************/
body {
background: gray;
}
```
Turbopack CSS:
```
/* [project]/test/e2e/app-dir/app-css/styles/global.css [app-client] (css) */
.bold {
font-weight: bold;
}
/* [project]/test/e2e/app-dir/app-css/app/style.css [app-client] (css) */
body {
font-size: large;
}
.not-found {
color: rgb(210, 105, 30);
}
/*# sourceMappingURL=%5Bproject%5D_test_e2e_app-dir_app-css_579669._.css.map*/
```
```
/* [project]/test/e2e/app-dir/app-css/app/hmr/global.css [app-client] (css) */
body {
background: gray;
}
/*# sourceMappingURL=app_hmr_global_2336bf.css.map*/
```
### How?
Closes PACK-2415
