Update Version to 1.99.8

Author: radsoulbeard

Diff for: Dockerfile

@@ -1,7 +1,7 @@
 FROM maven:3.5-jdk-8-alpine
 
 RUN  apk add --no-cache bash && \
-     mvn com.sap.cloud:neo-javaee7-wp-maven-plugin:1.89.11:install-sdk -DsdkInstallPath=sdk -Dincludes=tools/**,license/**,sdk.version && \
+     mvn com.sap.cloud:neo-javaee7-wp-maven-plugin:1.99.8:install-sdk -DsdkInstallPath=sdk -Dincludes=tools/**,license/**,sdk.version && \
      chmod -R 777 sdk && \
      ln -s /sdk/tools/neo.sh /usr/bin/neo.sh && \
      rm -rf /var/lib/apt/lists/*