Update zstd-codec to fix deprecation warning/crash

In some recent Node v20/22 versions, the Buffer deprecation
warning now crashes the process entirely when thrown from WASM. This
fixes that (although newer Node versions should be fixed too, this
is useful for those cases, and good to fix deprecations regardless).

Author: pimterry

package.json

@@ -50,7 +50,7 @@
   "dependencies": {
     "brotli-wasm": "^3.0.0",
     "pify": "^5.0.0",
-    "zstd-codec": "^0.1.4"
+    "zstd-codec": "^0.1.5"
   },
   "devDependencies": {
     "@types/chai": "^4.2.18",