Bump com.github.jknack:handlebars from 4.3.1 to 4.4.0

Bumps [com.github.jknack:handlebars](https://github.com/jknack/handlebars.java) from 4.3.1 to 4.4.0.
- [Release notes](https://github.com/jknack/handlebars.java/releases)
- [Commits](jknack/handlebars.java@v4.3.1...v4.4.0)

---
updated-dependencies:
- dependency-name: com.github.jknack:handlebars
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

websocket-api-impl/pom.xml

@@ -112,7 +112,7 @@
     <dependency>
       <groupId>com.github.jknack</groupId>
       <artifactId>handlebars</artifactId>
-      <version>4.3.1</version>
+      <version>4.4.0</version>
     </dependency>
     <dependency>
       <groupId>io.smallrye.reactive</groupId>