Merge pull request #396 from grails/puneetbehl-patch-1

Update Micrometer to 1.8.0

Author: puneetbehl

gradle.properties

@@ -28,6 +28,6 @@ webdriverBinariesVersion=1.4
 # only required by sample apps
 fieldsVersion=3.0.0.RC1
 grailsVersion=5.1.0-SNAPSHOT
-micrometer.version=1.7.0
+micrometer.version=1.8.0
 scaffolingVersion=4.0.0.RC1
 testingSupportVersion=2.2.1-SNAPSHOT