Bump json-jwt from 1.15.3 to 1.15.3.1 (#477)

Bumps [json-jwt](https://github.com/nov/json-jwt) from 1.15.3 to 1.15.3.1.
- [Release notes](https://github.com/nov/json-jwt/releases)
- [Changelog](https://github.com/nov/json-jwt/blob/main/CHANGELOG.md)
- [Commits](nov/json-jwt@v1.15.3...v1.15.3.1)

---
updated-dependencies:
- dependency-name: json-jwt
  dependency-type: indirect
...

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

Gemfile.lock

@@ -90,7 +90,7 @@ GEM
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
     bcrypt (3.1.18)
-    bindata (2.4.15)
+    bindata (2.5.0)
     bindex (0.8.1)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
@@ -209,7 +209,7 @@ GEM
     jbuilder_cache_multi (0.1.0)
       jbuilder (>= 1.5.0, < 3)
     json (2.3.1)
-    json-jwt (1.15.3)
+    json-jwt (1.15.3.1)
       activesupport (>= 4.2)
       aes_key_wrap
       bindata