MINOR: unpin ducktape dependency to always use the newest version (py…

…3 edition) (apache#11884)

Ensures we always have the latest published ducktape version.
This way whenever we release a new one, we won't have to cherry pick a bunch of commits across a bunch of branches.

tests/docker/Dockerfile

@@ -35,7 +35,7 @@ LABEL ducker.creator=$ducker_creator
 # we have to install git since it is included in openjdk:8 but not openjdk:11
 RUN apt update && apt install -y sudo git netcat iptables rsync unzip wget curl jq coreutils openssh-server net-tools vim python3-pip python3-dev libffi-dev libssl-dev cmake pkg-config libfuse-dev iperf traceroute iproute2 && apt-get -y clean
 RUN python3 -m pip install -U pip==21.1.1;
-RUN pip3 install --upgrade cffi virtualenv pyasn1 boto3 pycrypto pywinrm ipaddress enum34 debugpy && pip3 install --upgrade ducktape==0.8.1
+RUN pip3 install --upgrade cffi virtualenv pyasn1 boto3 pycrypto pywinrm ipaddress enum34 debugpy && pip3 install --upgrade "ducktape>0.8"
 
 # Set up ssh
 COPY ./ssh-config /root/.ssh/config

tests/setup.py

@@ -47,11 +47,11 @@ def run_tests(self):
       version=version,
       description="Apache Kafka System Tests",
       author="Apache Kafka",
-      platforms=["any"], 
+      platforms=["any"],
       license="apache2.0",
       packages=find_packages(),
       include_package_data=True,
-      install_requires=["ducktape==0.8.8", "requests==2.24.0"],
+      install_requires=["ducktape>0.8", "requests==2.24.0"],
       tests_require=["pytest", "mock"],
       cmdclass={'test': PyTest},
       zip_safe=False