fix: update pip dependencies version in dockerfile

Author: m-schmoock

contrib/Dockerfile.builder

@@ -55,15 +55,15 @@ RUN pip3 install --upgrade pip && \
     python3 -m pip install \
 	CherryPy==17.3.0 \
 	Flask==1.0.2 \
-	cheroot==6.5.2 \
+	cheroot==8.2.1 \
 	ephemeral-port-reserve==1.1.0 \
 	flaky==3.4.0 \
 	pytest-benchmark==3.1.1 \
         pytest-forked==0.2 \
 	pytest-timeout==1.3.3 \
 	pytest-xdist==1.22.2 \
 	pytest==3.8.1 \
-	python-bitcoinlib==0.7.0 \
+	python-bitcoinlib==0.10.2 \
 	tqdm==4.26.0 \
 	pytest-test-groups==1.0.3 \
 	flake8==3.5.0 \

contrib/Dockerfile.builder.fedora

@@ -33,4 +33,4 @@ RUN wget https://bitcoin.org/bin/bitcoin-core-$BITCOIN_VERSION/bitcoin-$BITCOIN_
     rm -rf bitcoin.tar.gz bitcoin-$BITCOIN_VERSION
 
 RUN python3 -m pip install --upgrade pip && \
-    python3 -m pip install python-bitcoinlib==0.7.0 pytest==3.0.5 setuptools==36.6.0 pytest-test-groups==1.0.3 flake8==3.5.0 pytest-rerunfailures==3.1 ephemeral-port-reserve==1.1.0
+    python3 -m pip install python-bitcoinlib==0.10.2 pytest==3.0.5 setuptools==36.6.0 pytest-test-groups==1.0.3 flake8==3.5.0 pytest-rerunfailures==3.1 ephemeral-port-reserve==1.1.0

contrib/Dockerfile.builder.i386

@@ -55,15 +55,15 @@ RUN pip3 install --upgrade pip && \
     python3 -m pip install \
 	CherryPy==17.3.0 \
 	Flask==1.0.2 \
-	cheroot==6.5.2 \
+	cheroot==8.2.1 \
 	ephemeral-port-reserve==1.1.0 \
 	flaky==3.4.0 \
 	pytest-benchmark==3.1.1 \
         pytest-forked==0.2 \
 	pytest-timeout==1.3.3 \
 	pytest-xdist==1.22.2 \
 	pytest==3.8.1 \
-	python-bitcoinlib==0.7.0 \
+	python-bitcoinlib==0.10.2 \
 	tqdm==4.26.0 \
 	pytest-test-groups==1.0.3 \
 	flake8==3.5.0 \