While it might not help with the following, it certainly might happen as
well.
```
+ curl -S -L --connect-timeout 5 --retry 6 -s https://codecov.io/bash -o codecov-upload.sh
curl: (16) Error in the HTTP2 framing layer
```
Recently sometimes Azure has failed with:
++ curl -s https://codecov.io/bash
bash: /dev/fd/63: No such file or directory
This attempts to fix this by modifying report-coverage.sh slightly.