Release 5.1.1: update versions

Author: paulk-asert

gradle.properties

@@ -13,9 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-groovyVersion=5.1.1-SNAPSHOT
+groovyVersion=5.1.1
 # bundle version format: major('.'minor('.'micro('.'qualifier)?)?)? (first 3 only digits)
-groovyBundleVersion=5.1.1.SNAPSHOT
+groovyBundleVersion=5.1.1
 
 groovyTargetBytecodeVersion=11
 targetJavaVersion=11