upgrade sbt-sonatype to 3.9.7 to support s01.oss.sonatype.org (#12)

* upgrade sbt-sonatype to 3.9.7 to support s01.oss.sonatype.org

re xerial/sbt-sonatype#214

* add legacy host warning re s01.oss.sonatype.org

* only one extra setting needed, apparently

build.sbt

@@ -12,7 +12,7 @@ libraryDependencies ++= List(
 
 addSbtPlugin("com.michaelpollmeier" % "sbt-git" % "1.0.1")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.5")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.7")
 
 homepage := Some(url("https://github.com/ShiftLeftSecurity/sbt-ci-release-early"))
 scmInfo := Some(ScmInfo(

project/build.properties

@@ -1 +1 @@
-sbt.version=1.4.3
+sbt.version=1.5.4

readme.md

@@ -93,6 +93,15 @@ Ensure the following settings *are* defined in your `build.sbt`:
 Example: https://github.com/mpollmeier/sbt-ci-release-early-usage/blob/master/build.sbt
 For a multi-project build, you can define those settings in your root `build.sbt` and prefix them with `ThisBuild/`, e.g. `ThisBuild/publishTo := sonatypePublishToBundle.value`
 
+  > ⚠️ Legacy Host
+  >
+  > By default, sbt-sonatype is configured to use the legacy Sonatype repository `oss.sonatype.org`. If you created a new account from February 2021, you need to configure the new repository url. Context: https://github.com/xerial/sbt-sonatype/issues/214
+  >
+  > ```scala
+  > // For all Sonatype accounts created from February 2021
+  > sonatypeCredentialHost := "s01.oss.sonatype.org"
+  > ```
+
 ### gitignore
 `echo '/gnupg-*' >> .gitignore`