Change ADD to COPY per hadolint

Containerfile

@@ -98,7 +98,7 @@ rm -rf /root/anaconda* /root/original-ks.cfg /usr/local/README
 # otherwise whatever user openshift runs the container with won't find the collection
 
 # Add requirements.yml file for ansible collections
-ADD requirements.yml /tmp/requirements.yml
+COPY requirements.yml /tmp/requirements.yml
 
 RUN pip install --no-cache-dir ${ANSIBLE_CORE_SPEC} pytest kubernetes openshift "boto3>=1.21" "botocore>=1.24" "awscli>=1.22" "azure-cli>=2.34" gcloud humanize jmespath awxkit pytz --upgrade && \
 pip install --no-cache-dir ansible-runner git+https://github.com/validatedpatterns/vp-qe-test-common.git@development#egg=vp-qe-test-common --upgrade && \