chore(deps): update dependency rollup-plugin-sourcemaps to v0.6.3 (#353)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -55,7 +55,7 @@
     "rollup-plugin-json": "4.0.0",
     "rollup-plugin-node-resolve": "5.2.0",
     "rollup-plugin-replace": "2.2.0",
-    "rollup-plugin-sourcemaps": "0.6.2",
+    "rollup-plugin-sourcemaps": "0.6.3",
     "rollup-plugin-terser": "5.3.1",
     "rollup-plugin-typescript2": "0.27.3",
     "terser": "4.8.0",