Code coverage reports not being uploaded because they are too large

[atruskie]

Describe the bug

When our CI server builds the app and runs unit tests it also produces a code coverage report. It seems the coverage report is being rejected by code-cov because the report is too large:

2020-06-12 05:30:28 INF AzurePipelines detected.
2020-06-12 05:30:28 INF Git detected.
2020-06-12 05:30:28 INF Project root: /home/vsts/work/1/s
2020-06-12 05:30:28 INF Yaml not found, that's ok! Learn more at http://docs.codecov.io/docs/codecov-yaml
2020-06-12 05:30:28 INF Reading reports.
2020-06-12 05:30:28 INF /home/vsts/work/_temp/Acoustics.Test_Results/d3adb687-c617-430c-8dfc-12b473f48324/coverage.opencover.xml
/home/vsts/work/_temp/AED.Test_Results/02d5cb98-98fb-43b0-a4fb-9f0027292c57/coverage.opencover.xml
2020-06-12 05:30:29 WRN Total file size of reports is above 20MB, this may prevent report being shown on codecov.io
2020-06-12 05:30:29 WRN Reduce the total upload size if this occurs
2020-06-12 05:30:29 INF Uploading Reports.
2020-06-12 05:30:29 INF url: https://codecov.io
2020-06-12 05:30:29 INF query: https://codecov.io/upload/v4?branch=master&commit=ae0de9a1e5f41ead188eb0ae1165bcd09c1a507d&build=20200612.2&tag=&pr=323&name=&flags=&slug=QutEcoacoustics%2Faudio-analysis&package=exe-1.11.1&build_url=https://dev.azure.com/QutEcoacoustics/audio-analysis/_build/results?buildId=2098&yaml=&job=2098&service=azure_pipelines&project=audio-analysis&server_uri=https://dev.azure.com/QutEcoacoustics/
2020-06-12 05:30:29 INF Pinging Codecov
2020-06-12 05:30:30 INF Uploading
2020-06-12 05:30:34 INF Uploading to S3 https://storage.googleapis.com
2020-06-12 05:30:34 INF View reports at: https://codecov.io/github/QutEcoacoustics/audio-analysis/commit/83d0ce35ade9e1a21360b10872eb12993bd2d124

Expected behavior

The reports should upload correctly

Diagnostics

N/A (related to CI builds and not AP.exe)