Add source and target java versions in pom.xml #807
Description
Background
The Maven configuration used in the hyperdrive trigger doesn't currently support out-of-the-box experience for building primarily, or any other operation, mainly when the developer uses a different java version. This is something that even the IDEA complains about.
This change is relatively simple. The sole purpose of this ticket is to have a place where it is documented.
Feature
We should add source and target java versions in pom.xml. Doc: https://maven.apache.org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html