Allow to specify the mode when creating a temp dir

[FlorentClarret]

What does this PR do?

Allow to specify the mode when creating a temp dir

Motivation

• By default, the directory has 0o700, see https://github.com/python/cpython/blob/main/Lib/tempfile.py#L344-L379
• In my case, I use this to create a dir to store some secrets generated on the fly that I'm mounting in docker containers. Only the root user can access and modify this folder, however some of the docker images I have are using a different user, so this user can't access the data and write to this folder. I ended up calling chmod on my side and it worked

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached
• If the PR doesn't need to be tested during QA, please add a qa/skip-qa label.

[codecov]

Codecov Report

Merging #14208 (bee2f71) into master (3150426) will decrease coverage by 0.73%.
The diff coverage is 100.00%.

Flag	Coverage Δ
active_directory	100.00% <ø> (+17.64%)	⬆️
activemq_xml	82.31% <ø> (ø)
amazon_msk	89.07% <ø> (ø)
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citrix_hypervisor	87.50% <ø> (ø)
cloud_foundry_api	95.98% <ø> (+0.12%)	⬆️
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datadog_checks_base	89.67% <ø> (+0.34%)	⬆️
datadog_checks_dev	80.02% <100.00%> (-2.46%)	⬇️
datadog_checks_downloader	80.48% <ø> (ø)
datadog_cluster_agent	90.00% <ø> (ø)
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directory	96.50% <ø> (ø)
disk	89.64% <ø> (-2.15%)	⬇️
dns_check	93.90% <ø> (ø)
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eks_fargate	94.05% <ø> (ø)
envoy	94.18% <ø> (ø)
external_dns	89.09% <ø> (ø)
fluentd	94.77% <ø> (ø)
foundationdb	78.50% <ø> (ø)
go_expvar	92.73% <ø> (ø)
harbor	80.04% <ø> (ø)
http_check	95.81% <ø> (+2.15%)	⬆️
ibm_i	81.95% <ø> (ø)
impala	97.97% <ø> (ø)
kube_apiserver_metrics	97.95% <ø> (ø)
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kyototycoon	85.96% <ø> (ø)
linux_proc_extras	96.22% <ø> (ø)
mapreduce	81.81% <ø> (+0.46%)	⬆️
mcache	93.50% <ø> (ø)
mesos_slave	93.63% <ø> (ø)
nagios	89.01% <ø> (ø)
network	63.08% <ø> (-29.97%)	⬇️
nfsstat	95.20% <ø> (ø)
openmetrics	97.90% <ø> (ø)
openstack	51.45% <ø> (ø)
openstack_controller	91.12% <ø> (ø)
php_fpm	90.25% <ø> (+0.84%)	⬆️
powerdns_recursor	96.65% <ø> (ø)
process	85.42% <ø> (+0.28%)	⬆️
pulsar	100.00% <ø> (ø)
rethinkdb	97.93% <ø> (ø)
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silk	93.51% <ø> (ø)
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system_swap	98.30% <ø> (ø)
tcp_check	91.58% <ø> (ø)
tokumx	58.40% <ø> (ø)
twistlock	79.62% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

[iliakur]

I'm getting a dejavu with this change of a PR I saw when I just started, I can swear it was also about exposing the mode of tempdirs. I can't find it naturally :)

[FlorentClarret]

I'll fix the windows tests this afternoon