upgrade to swagger 2.2.7 (#220)

and fix issue that appeared with unsupported fields being marked as required

Author: pjfanning

build.sbt

@@ -85,7 +85,7 @@ Compile / unmanagedSourceDirectories ++= {
 
 libraryDependencies ++= Seq(
   "org.slf4j" % "slf4j-api" % "2.0.3",
-  "io.swagger.core.v3" % "swagger-core-jakarta" % "2.2.4",
+  "io.swagger.core.v3" % "swagger-core-jakarta" % "2.2.7",
   "com.fasterxml.jackson.module" %% "jackson-module-scala" % "2.14.0",
   "org.scalatest" %% "scalatest" % "3.2.14" % Test,
   "org.slf4j" % "slf4j-simple" % "2.0.3" % Test

src/main/scala/com/github/swagger/scala/converter/SwaggerScalaModelConverter.scala

@@ -151,8 +151,6 @@ class SwaggerScalaModelConverter extends ModelResolver(SwaggerScalaModelConverte
                 case Some(_) => property.setName(null)
                 case _ =>
               }
-            } else {
-              setRequired(`type`)
             }
             property
           }