Bump r2dbc-mysql from 0.8.1.RELEASE to 0.8.2.RELEASE in /modules/mysql (#3046)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Richard North <[email protected]>

Author: dependabot[bot]

modules/mysql/build.gradle

@@ -7,7 +7,7 @@ dependencies {
     compile project(':jdbc')
 
     compileOnly project(':r2dbc')
-    compileOnly 'dev.miku:r2dbc-mysql:0.8.1.RELEASE'
+    compileOnly 'dev.miku:r2dbc-mysql:0.8.2.RELEASE'
 
     testCompile project(':jdbc-test')
     testCompile 'mysql:mysql-connector-java:8.0.21'