Bump miniBill/elm-codec from 2.1.0 to 2.2.0 (#128)

Bumps [miniBill/elm-codec](https://github.com/miniBill/elm-codec) from 2.1.0 to 2.2.0.
- [Changelog](https://github.com/miniBill/elm-codec/blob/main/CHANGELOG.md)
- [Commits](miniBill/elm-codec@2.1.0...2.2.0)

---
updated-dependencies:
- dependency-name: miniBill/elm-codec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

elm.json

@@ -42,7 +42,7 @@
             "joshuanianji/github-language-colors": "2.1.0",
             "justinmimbs/date": "4.1.0",
             "mdgriffith/elm-codegen": "4.2.2",
-            "miniBill/elm-codec": "2.1.0",
+            "miniBill/elm-codec": "2.2.0",
             "noahzgordon/elm-color-extra": "1.0.2",
             "pablohirafuji/elm-syntax-highlight": "3.5.0",
             "robinheghan/fnv1a": "1.0.0",