Downgrade git-extras to 4.7.0 because of missing dependency 'column' on Alpine

Dockerfile

@@ -63,7 +63,8 @@ RUN echo 'hosts: files dns' > /etc/nsswitch.conf && \
     \
     git clone https://github.com/tj/git-extras.git && \
     cd git-extras && \
-    git checkout $(git describe --tags $(git rev-list --tags --max-count=1)) && \
+    #git checkout $(git describe --tags $(git rev-list --tags --max-count=1)) && \
+    git checkout 4.7.0 && \
     make install && \
     cd .. && \
     rm -rf git-extras && \