ops(ci): conventional-commits based release versions

- added enforcing of conventional commits
- project version is now set by axion-release gradle plugin, configured to extract the version based on the commit history

see https://axion-release-plugin.readthedocs.io/en/latest/

Author: Flaxoos

build.gradle.kts

@@ -28,7 +28,7 @@ plugins {
 
 // set version based on conventional commit history
 scmVersion {
-    unshallowRepoOnCI.set(true)
+    unshallowRepoOnCI.set(false)
     tag {
         prefix.set("v")
         versionSeparator.set("")