update root certificates at every build (developmentseed#381)

* update root certificates at every build

* updated changelog

* Revert "updated changelog"

This reverts commit d875484.

Dockerfile

@@ -1,5 +1,11 @@
 FROM tiangolo/uvicorn-gunicorn:python3.8
 
+# Ensure root certificates are always updated at evey container build
+# and curl is using the latest version of them
+RUN mkdir /usr/local/share/ca-certificates/cacert.org
+RUN cd /usr/local/share/ca-certificates/cacert.org && curl -k -O https://www.cacert.org/certs/root.crt 
+RUN cd /usr/local/share/ca-certificates/cacert.org && curl -k -O https://www.cacert.org/certs/class3.crt
+RUN update-ca-certificates
 ENV CURL_CA_BUNDLE /etc/ssl/certs/ca-certificates.crt
 
 COPY src/titiler/ /tmp/titiler/