software/slapos-sr-testing: use an unreleased python-plantuml supporting python3

software/slapos-sr-testing/software.cfg

@@ -121,6 +121,7 @@ setup = ${slapos.core-repository:location}
 [eggs]
 recipe = zc.recipe.egg
 eggs =
+  ${plantuml-setup:egg}
   ${lxml-python:egg}
   ${slapos.core-setup:egg}
   ${pillow-python:egg}
@@ -172,6 +173,18 @@ url = ${:_profile_base_location_}/${:filename}
 output = ${buildout:directory}/template.cfg
 mode = 640
 
+[plantuml-repository]
+<= git-clone-repository
+repository = https://github.com/perrinjerome/python-plantuml.git
+# workaround for https://github.com/dougn/python-plantuml/issues/12
+revision = 9847a9e365e5d4f31e825b561e8a8fb84a94b1eb
+
+[plantuml-setup]
+<= setup-develop-egg
+egg = plantuml
+setup = ${plantuml-repository:location}
+
+
 [versions]
 # slapos.core is used from the clone always
 slapos.core =
@@ -183,7 +196,7 @@ forcediphttpsadapter = 1.0.1
 httplib2 = 0.11.3
 image = 1.5.25
 paramiko = 2.4.2
-plantuml = 0.1.1
+plantuml =
 pysftp = 0.2.9
 requests-toolbelt = 0.8.0
 selenium = 3.141.0