[2.0.x] deps: sbtn 2.1.0-6eac8efa (#9861)

build.sbt

@@ -16,7 +16,7 @@ ThisBuild / version := {
   nightlyVersion.getOrElse(v)
 }
 // update sbt.sh at root
-ThisBuild / Utils.sbtnVersion := "2.1.0-M1"
+ThisBuild / Utils.sbtnVersion := "2.1.0-6eac8efa"
 ThisBuild / versionScheme := Some("early-semver")
 ThisBuild / Utils.version2_13 := "2.0.0-SNAPSHOT"
 ThisBuild / scalafmtOnCompile := !(Global / insideCI).value

sbt

@@ -25,7 +25,7 @@ declare use_sbtn=
 declare use_jvm_client=
 declare no_server=
 declare sbtn_command="$SBTN_CMD"
-declare sbtn_version="2.1.0-M1"
+declare sbtn_version="2.1.0-6eac8efa"
 declare use_colors=1
 declare is_this_dir_sbt=""
 declare hide_jdk_warnings=1