[maven-release-plugin] prepare release v0.8.0-incubating
Revert "[maven-release-plugin] prepare release v0.8.0-incubating"

This reverts commit ace08c729fab73a2c82bd599dfe51ba7b580f944.
[maven-release-plugin] prepare release v0.8.0-incubating
[maven-release-plugin] prepare for next development iteration