Upgrade gradle to 6.9.3 (#85)

Author: dgrove-oss

core/net6.0/CHANGELOG.md

@@ -20,6 +20,7 @@
 # .NET 6.0 OpenWhisk Runtime Container
 
 ## 1.18
+- Upgrade gradle to 6.9.3 (#85)
 - Drop support for dotnet3.1 (EOL) (#83)
 
 ## 1.17

gradle/wrapper/gradle-wrapper.jar

@@ -18,4 +18,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.3-bin.zip