update scala samples

Author: wing328

samples/server/petstore/scala-pekko-http-server/.openapi-generator/FILES

@@ -1,5 +1,7 @@
+.scalafmt.conf
 README.md
 build.sbt
+project/plugins.sbt
 src/main/scala/org/openapitools/server/AkkaHttpHelper.scala
 src/main/scala/org/openapitools/server/Controller.scala
 src/main/scala/org/openapitools/server/MultipartDirectives.scala

samples/server/petstore/scala-pekko-http-server/.scalafmt.conf

@@ -0,0 +1,58 @@
+version=3.10.6
+runner.dialect = scala213
+project {
+  git = false
+  excludeFilters = [
+    scalafmt-benchmarks/src/resources,
+    sbt-test
+    bin/issue
+  ]
+  layout = StandardConvention
+}
+align {
+  preset = none
+  stripMargin = true
+}
+binPack {
+  importSelectors = fold
+}
+newlines {
+  avoidForSimpleOverflow = all
+  ignoreInSyntax = false
+  source = fold
+}
+rewrite {
+  rules = [
+    AvoidInfix,
+    Imports,
+    RedundantBraces,
+    RedundantParens,
+    SortModifiers,
+  ]
+  imports {
+    selectors = fold
+    removeRedundantSelectors = true
+    sort = ascii
+    groups = [
+      ["org\\.scalafmt\\..*"],
+      ["scala\\.meta\\..*", "org\\.scalameta\\..*"],
+      ["sbt\\..*"],
+      ["java.?\\..*"],
+      ["scala\\..*"],
+      ["org\\..*"],
+      ["com\\..*"],
+    ]
+  }
+  redundantBraces {
+    preset = all
+    oneStatApply {
+      parensMaxSpan = 300
+      bracesMinSpan = 300
+    }
+  }
+  redundantParens {
+    preset = all
+  }
+  sortModifiers.preset = styleGuide
+  trailingCommas.style = "always"
+}

samples/server/petstore/scala-pekko-http-server/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")