Bump version to 3.0.0-beta1 (#120)

Signed-off-by: Daniel Widdis <[email protected]>

Author: dbwiddis

build.gradle

@@ -8,9 +8,9 @@ import org.opensearch.gradle.VersionProperties
 buildscript {
     ext {
         opensearch_group = "org.opensearch"
-        opensearch_version = System.getProperty("opensearch.version", "3.0.0-alpha1-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "3.0.0-beta1-SNAPSHOT")
         is_snapshot = "true" == System.getProperty("build.snapshot", "true")
-        build_version_qualifier = System.getProperty("build.version_qualifier", "alpha1")
+        build_version_qualifier = System.getProperty("build.version_qualifier", "beta1")
 
         version_tokens = opensearch_version.tokenize('-')
         opensearch_build = version_tokens[0] + '.0'