Use git tag for archive versioning

azure-pipelines/rpi3.yml

@@ -2,8 +2,12 @@
 steps:
   - checkout: self
     submodules: true
+    path: rpi3-dmx
+    
+  - script: VERSION_TAG=`git describe --abbrev=0` && echo "##vso[task.setvariable variable=VERSION_TAG]$VERSION_TAG"
+    displayName: Set the tag name as an environment variable
+
   - script: |
-      make clean
       cd external/capsimg
       ./bootstrap.fs
       ./configure.fs
@@ -32,7 +36,7 @@ steps:
     inputs:
       rootFolderOrFile: 'amiberry-rpi3-dmx-32bit'
       includeRootFolder: true
-      archiveFile: '$(Build.ArtifactStagingDirectory)/amiberry-$(AmiberryVersion)-rpi3-dmx-32bit.zip'
+      archiveFile: '$(Build.ArtifactStagingDirectory)/amiberry-$(VERSION_TAG)-rpi3-dmx-32bit.zip'
  
   - task: PublishBuildArtifacts@1
     inputs: