[maven-release-plugin] prepare release 1.0.0-preview1

Author: asm0dey

core-3.0.0_2.12/pom.xml

@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.jetbrains.kotlinx.spark</groupId>
     <artifactId>kotlin-spark-api-parent</artifactId>
-    <version>1.0.0-preview1-SNAPSHOT</version>
+    <version>1.0.0-preview1</version>
   </parent>
   <artifactId>core-3.0.0_2.12</artifactId>
   <name>Kotlin Spark API: Scala core</name>

examples/pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>org.jetbrains.kotlinx.spark</groupId>
     <artifactId>kotlin-spark-api-parent</artifactId>
-    <version>1.0.0-preview1-SNAPSHOT</version>
+    <version>1.0.0-preview1</version>
   </parent>
 
   <groupId>org.jetbrains.kotlin.spark.examples</groupId>

kotlin-spark-api-3.0.0_2.12/pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>org.jetbrains.kotlinx.spark</groupId>
     <artifactId>kotlin-spark-api-parent</artifactId>
-    <version>1.0.0-preview1-SNAPSHOT</version>
+    <version>1.0.0-preview1</version>
   </parent>
 
   <artifactId>kotlin-spark-api-3.0.0_2.12</artifactId>

pom.xml

@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.jetbrains.kotlinx.spark</groupId>
   <artifactId>kotlin-spark-api-parent</artifactId>
-  <version>1.0.0-preview1-SNAPSHOT</version>
+  <version>1.0.0-preview1</version>
   <packaging>pom</packaging>
   <name>kotlin-spark-api-parent</name>
   <description>Parent project for Kotlin for Apache Spark</description>
@@ -147,7 +147,7 @@
   <scm>
     <connection>scm:git:https://github.com/JetBrains/kotlin-spark-api.git</connection>
     <url>https://github.com/JetBrains/kotlin-spark-api</url>
-    <tag>HEAD</tag>
+    <tag>1.0.0-preview1</tag>
   </scm>
   <distributionManagement>
     <repository>