Update scalafmt and fix deprecated sbt publish config

Author: dacr

.scalafmt.conf

@@ -1,4 +1,4 @@
-version = 3.8.2
+version = 3.8.3
 runner.dialect = scala3
 align.preset = most
 maxColumn = 200

publish.sbt

@@ -4,7 +4,7 @@ releaseCrossBuild := true
 releasePublishArtifactsAction := PgpKeys.publishSigned.value
 publishMavenStyle := true
 Test / publishArtifact := false
-publishTo := Some(if (isSnapshot.value) Opts.resolver.sonatypeSnapshots else Opts.resolver.sonatypeStaging)
+publishTo := Some(if (isSnapshot.value) Opts.resolver.sonatypeOssSnapshots.head else Opts.resolver.sonatypeStaging)
 
 Global / PgpKeys.useGpg := true      // workaround with pgp and sbt 1.2.x
 pgpSecretRing := pgpPublicRing.value // workaround with pgp and sbt 1.2.x