Bump org.jboss.resteasy:resteasy-multipart-provider

Bumps org.jboss.resteasy:resteasy-multipart-provider from 3.15.6.Final to 4.7.8.Final.

---
updated-dependencies:
- dependency-name: org.jboss.resteasy:resteasy-multipart-provider
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

swagger-client/jaxrs-resteasy-eap/pom.xml

@@ -220,7 +220,7 @@
     <properties>
         <swagger-core-version>2.0.0</swagger-core-version>
         <jetty-version>9.3.27.v20190418</jetty-version>
-        <resteasy-version>3.15.6.Final</resteasy-version>
+        <resteasy-version>4.7.8.Final</resteasy-version>
         <slf4j-version>1.6.3</slf4j-version>
         <junit-version>4.13.1</junit-version>
         <servlet-api-version>2.5</servlet-api-version>