feat: support webpack profiling (#9804)

Co-authored-by: Martin Guillon <martin.guillon@akylas.fr>

packages/webpack5/src/index.ts

@@ -43,6 +43,9 @@ export interface IWebpackEnv {
 	// enable verbose output
 	verbose?: boolean;
 
+	// enable webpack profiling
+	profile?: boolean;
+
 	// misc
 	replace?: string[] | string;
 	watchNodeModules?: boolean;