Disable the fsGroup security context because it causes our container to time out for 20 minutes as k8s chown's all of the files in the volume. This isn't necessary except first start.
# This is the official 0.13.0 cert-manager.yaml manifest
# from https://github.com/jetstack/cert-manager/releases. No changes, aside
# from this header have been made.
# yamllint disable
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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
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# distributed under the License is distributed on an "AS IS" BASIS,
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