deps: update encoding requirement from ^0.1.12 to ^0.1.13 (#34)

Updates the requirements on [encoding](https://github.com/andris9/encoding) to permit the latest version.
- [Release notes](https://github.com/andris9/encoding/releases)
- [Commits](andris9/encoding@v0.1.12...v0.1.13)

---
updated-dependencies:
- dependency-name: encoding
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -38,7 +38,7 @@
     "minizlib": "^2.1.2"
   },
   "optionalDependencies": {
-    "encoding": "^0.1.12"
+    "encoding": "^0.1.13"
   },
   "repository": {
     "type": "git",