🔼 Update minimum OCR-D version

Dockerfile-core

@@ -1,7 +1,7 @@
 FROM ubuntu:18.04
 
 ARG PIP_INSTALL="pip install --no-cache-dir"
-ARG OCRD_VERSION_MINIMUM="2.23.3"
+ARG OCRD_VERSION_MINIMUM="2.47.0"
 ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
 ENV PIP_DEFAULT_TIMEOUT=120
 

Dockerfile-core-cuda10.0

@@ -1,7 +1,7 @@
 FROM nvidia/cuda:10.0-cudnn7-runtime-ubuntu18.04
 
 ARG PIP_INSTALL="pip install --no-cache-dir"
-ARG OCRD_VERSION_MINIMUM="2.23.3"
+ARG OCRD_VERSION_MINIMUM="2.47.0"
 ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
 ENV PIP_DEFAULT_TIMEOUT=120
 

Dockerfile-core-cuda10.1

@@ -1,7 +1,7 @@
 FROM nvidia/cuda:10.1-cudnn7-runtime-ubuntu18.04
 
 ARG PIP_INSTALL="pip install --no-cache-dir"
-ARG OCRD_VERSION_MINIMUM="2.23.3"
+ARG OCRD_VERSION_MINIMUM="2.47.0"
 ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
 ENV PIP_DEFAULT_TIMEOUT=120