Required setuptools>=40.0 for running and tests/system/Testbeat.py is not up-to-date in 7.9

[v1v]

What

• Required setuptools>=40.0
• tests/system/Testbeat.py is not up-to-date

Stacktrace

2020-09-29T09:23:56.866Z] ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.
[2020-09-29T09:23:56.866Z] 
[2020-09-29T09:23:56.866Z] We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.
[2020-09-29T09:23:56.866Z] 
[2020-09-29T09:23:56.866Z] pytest-rerunfailures 9.0 requires setuptools>=40.0, but you'll have setuptools 39.0.1 which is incompatible.
[2020-09-29T09:24:09.131Z] Generated fields.yml for testbeat to /var/lib/jenkins/workspace/Beats_beats_PR-21370/src/beatpath/testbeat/fields.yml
[2020-09-29T09:24:14.456Z] =======================
[2020-09-29T09:24:14.456Z] Your custom beat is now available as /var/lib/jenkins/workspace/Beats_beats_PR-21370/src/beatpath/testbeat
[2020-09-29T09:24:14.456Z] =======================
[2020-09-29T09:24:14.456Z] cd /var/lib/jenkins/workspace/Beats_beats_PR-21370/src/beatpath/testbeat ; \
[2020-09-29T09:24:14.456Z] export PATH=${GOPATH}/bin:${PATH}; \
[2020-09-29T09:24:14.456Z] git config user.email "[email protected]" || exit 1 ; \
[2020-09-29T09:24:14.456Z] git config user.name "beats-jenkins" || exit 1 ; \
[2020-09-29T09:24:14.456Z] make check CHECK_HEADERS_DISABLED=y || exit 1 ; \
[2020-09-29T09:24:14.456Z] make || exit 1 ; \
[2020-09-29T09:24:14.456Z] mage test
[2020-09-29T09:24:14.456Z] make[1]: Entering directory '/var/lib/jenkins/workspace/Beats_beats_PR-21370/src/beatpath/testbeat'
[2020-09-29T09:24:17.007Z] >> fmt - autopep8: Formatting Python code
[2020-09-29T09:24:17.007Z] >> fmt - goimports: Formatting Go code
[2020-09-29T09:24:21.322Z] Cache entry deserialization failed, entry ignored
[2020-09-29T09:24:39.462Z] ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.
[2020-09-29T09:24:39.463Z] 
[2020-09-29T09:24:39.463Z] We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.
[2020-09-29T09:24:39.463Z] 
[2020-09-29T09:24:39.463Z] pytest-rerunfailures 9.0 requires setuptools>=40.0, but you'll have setuptools 39.0.1 which is incompatible.
[2020-09-29T09:24:39.463Z] >> check: Checking source code for common problems
[2020-09-29T09:25:47.399Z] Error: some files are not up-to-date. Run 'mage fmt update' then review and commit the changes. Modified: [tests/system/Testbeat.py]
[2020-09-29T09:25:47.399Z] /var/lib/jenkins/workspace/Beats_beats_PR-21370/pkg/mod/github.com/elastic/beats/[email protected]/libbeat/scripts/Makefile:155: recipe for target 'check' failed
[2020-09-29T09:25:47.399Z] make[1]: *** [check] Error 1
[2020-09-29T09:25:47.399Z] make[1]: Leaving directory '/var/lib/jenkins/workspace/Beats_beats_PR-21370/src/beatpath/testbeat'
[2020-09-29T09:25:47.399Z] ../../common/Makefile:13: recipe for target 'test' failed
[2020-09-29T09:25:47.399Z] make: *** [test] Error 1
[2020-09-29T09:25:47.399Z] make: Leaving directory '/var/lib/jenkins/workspace/Beats_beats_PR-21370/src/github.com/elastic/beats/generator/_templates/beat'

How to reproduce it

make -C generator/_templates/beat test test-package

Further details

• See build