fix(deps): update dependency webpack-sources to v3 (#398)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Hiroki Osame <hiroki.osame@gmail.com>

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
 		"esbuild": "^0.27.1",
 		"get-tsconfig": "^4.10.1",
 		"loader-utils": "^2.0.4",
-		"webpack-sources": "^1.4.3"
+		"webpack-sources": "^3.3.4"
 	},
 	"peerDependencies": {
 		"webpack": "^4.40.0 || ^5.0.0"
@@ -60,7 +60,7 @@
 		"@types/mini-css-extract-plugin": "2.4.0",
 		"@types/node": "^22.19.3",
 		"@types/webpack": "^4.41.40",
-		"@types/webpack-sources": "^1.4.7",
+		"@types/webpack-sources": "^3.2.3",
 		"clean-pkg-json": "^1.3.0",
 		"css-loader": "^5.2.7",
 		"execa": "^8.0.1",

pnpm-lock.yaml

@@ -108,10 +108,10 @@ const transformAssets = async (
 					? new SourceMapSource(
 						result.code,
 						asset.name,
-						// @ts-expect-error it accepts strings
 						result.map,
 						sourceAsString,
-						map,
+						// @ts-expect-error webpack types use Object, not RawSourceMap
+						map ?? undefined,
 						true,
 					)
 					: new RawSource(result.code)