add mit-0 license

[steveny91]

What does this PR do?

pyodbc recently updated their license to MIT-0 and this was breaking the automated dep upgrade workflow.

The main file that needed to be updated was the one in the ddev directory. But to keep things synced I also added it to datadog_checks_dev.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.82%. Comparing base (1fce6b8) to head (86db21f).
Report is 3 commits behind head on master.

Additional details and impacted files

Flag	Coverage Δ
activemq	?
activemq_xml	82.20% <ø> (ø)
ambari	85.75% <ø> (ø)
appgate_sdp	93.93% <ø> (ø)
arangodb	98.23% <ø> (ø)
avi_vantage	91.35% <ø> (ø)
aws_neuron	92.42% <ø> (ø)
azure_iot_edge	82.08% <ø> (ø)
btrfs	83.33% <ø> (ø)
cassandra	66.66% <ø> (ø)
cisco_aci	89.59% <ø> (ø)
citrix_hypervisor	87.50% <ø> (ø)
cloud_foundry_api	96.11% <ø> (ø)
cloudera	99.51% <ø> (ø)
crio	89.79% <ø> (ø)
dcgm	93.54% <ø> (ø)
directory	96.46% <ø> (ø)
disk	89.44% <ø> (ø)
dns_check	93.81% <ø> (ø)
eks_fargate	94.05% <ø> (ø)
external_dns	89.28% <ø> (ø)
fluentd	84.32% <ø> (ø)
go_expvar	92.66% <ø> (ø)
hive	?
hivemq	?
ignite	?
jboss_wildfly	?
kafka	?
kubelet	91.09% <ø> (ø)
presto	?
riakcs	88.82% <ø> (ø)
solr	?

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