[Docker] hotfix for Netron version, 5.0.0 no longer available

docker/Dockerfile.finn

@@ -78,7 +78,7 @@ RUN pip install sphinx==3.1.2
 RUN pip install sphinx_rtd_theme==0.5.0
 RUN pip install pytest-xdist==2.0.0
 RUN pip install pytest-parallel==0.1.0
-RUN pip install netron==5.0.0
+RUN pip install "netron>=5.0.0"
 RUN pip install pandas==1.1.5
 RUN pip install scikit-learn==0.24.1
 RUN pip install tqdm==4.31.1