Upgrade version of mkdocs-techdocs-core

Graphviz issue https://github.com/spotify/backstage/pull/3139

packages/techdocs-container/Dockerfile

@@ -1,11 +1,11 @@
 # Copyright 2020 Spotify AB
-#  
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-#  
+#
 #     http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -18,7 +18,7 @@ FROM python:3.8-alpine
 RUN apk update && apk --no-cache add gcc musl-dev openjdk11-jdk curl graphviz ttf-dejavu fontconfig
 
 RUN curl -o plantuml.jar -L http://sourceforge.net/projects/plantuml/files/plantuml.1.2020.16.jar/download && echo "c789ace48347c43073232b1458badc5810c01fe8  plantuml.jar" | sha1sum -c - && mv plantuml.jar /opt/plantuml.jar
-RUN pip install --upgrade pip && pip install mkdocs-techdocs-core==0.0.8
+RUN pip install --upgrade pip && pip install mkdocs-techdocs-core==0.0.10
 
 # Create script to call plantuml.jar from a location in path