Bump io.jsonwebtoken:jjwt-impl from 0.12.3 to 0.12.4

Bumps [io.jsonwebtoken:jjwt-impl](https://github.com/jwtk/jjwt) from 0.12.3 to 0.12.4.
- [Release notes](https://github.com/jwtk/jjwt/releases)
- [Changelog](https://github.com/jwtk/jjwt/blob/master/CHANGELOG.md)
- [Commits](jwtk/jjwt@0.12.3...0.12.4)

---
updated-dependencies:
- dependency-name: io.jsonwebtoken:jjwt-impl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -29,7 +29,7 @@ dependencies {
 
     api "net.lenni0451.commons:httpclient:1.4.1"
     api "com.google.code.gson:gson:2.10.1"
-    api "io.jsonwebtoken:jjwt-impl:0.12.3"
+    api "io.jsonwebtoken:jjwt-impl:0.12.4"
     api("io.jsonwebtoken:jjwt-gson:0.12.3") {
         exclude group: "com.google.code.gson", module: "gson"
     }