gitlab-ci-cd/general#6 Add healthchecks.py script

Dockerfile

@@ -107,6 +107,9 @@ RUN echo 'hosts: files dns' > /etc/nsswitch.conf && \
     cd .. && \
     rm -rf git-extras && \
     \
+    curl -SL https://gitlab.lakedrops.com/ansible/playbooks/general/-/raw/main/plugins/_lookup/healthchecks.py -o /usr/local/bin/healthchecks.py && \
+    chmod +x /usr/local/bin/healthchecks.py && \
+    \
     docker-php-ext-install \
       bcmath \
       gd \