Update mimaPreviousArtifacts, downgrade mdoc (#921)

Co-authored-by: Matěj Černý <[email protected]>

.gitignore

@@ -17,4 +17,4 @@ out
 metals.sbt
 
 # MacOS
-.DS_Store
+.DS_Store

build.sbt

@@ -6,6 +6,7 @@ import microsites.ExtraMdFileConfig
 ThisBuild / name               := """fs2-rabbit"""
 ThisBuild / scalaVersion       := "2.13.12"
 ThisBuild / crossScalaVersions := List("2.12.18", "2.13.12", "3.3.1")
+ThisBuild / versionScheme      := Some("semver-spec")
 ThisBuild / organization       := "dev.profunktor"
 ThisBuild / homepage           := Some(url("https://fs2-rabbit.profunktor.dev/"))
 ThisBuild / licenses           := List("Apache-2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0"))
@@ -64,7 +65,7 @@ val commonSettings = List(
   libraryDependencies ++= commonDependencies(scalaVersion.value),
   resolvers += "Apache public" at "https://repository.apache.org/content/groups/public/",
   scalafmtOnCompile     := true,
-  mimaPreviousArtifacts := Set(organization.value %% moduleName.value % "5.0.0")
+  mimaPreviousArtifacts := Set(organization.value %% moduleName.value % "5.1.0")
 )
 
 def CoreDependencies(scalaVersionStr: String): List[ModuleID] =

project/plugins.sbt

@@ -4,7 +4,7 @@ resolvers += "Typesafe Repository" at "https://repo.typesafe.com/typesafe/releas
 addSbtPlugin("com.github.sbt"    % "sbt-ci-release"  % "1.5.10")
 addSbtPlugin("de.heikoseeberger" % "sbt-header"      % "5.10.0")
 addSbtPlugin("com.47deg"         % "sbt-microsites"  % "1.3.4")
-addSbtPlugin("org.scalameta"     % "sbt-mdoc"        % "2.5.2")
+addSbtPlugin("org.scalameta"     % "sbt-mdoc"        % "2.3.8")
 addSbtPlugin("com.scalapenos"    % "sbt-prompt"      % "1.0.2")
 addSbtPlugin("org.scalameta"     % "sbt-scalafmt"    % "2.5.2")
 addSbtPlugin("org.typelevel"     % "sbt-tpolecat"    % "0.5.0")