Added a codecov workflow

[roverflow]

SUMMARY

New codecov workflow will be added which will show coverage of the repo

[codecov]

Welcome to Codecov 🎉

Once merged to your default branch, Codecov will compare your coverage reports and display the results in this comment.

Thanks for integrating Codecov - We've got you covered ☂️

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/46a4b6b01739455eb5ee7daa09c1a314

✔️ ansible-galaxy-importer SUCCESS in 4m 30s
✔️ build-ansible-collection SUCCESS in 8m 46s
❌ ansible-test-sanity-docker-devel FAILURE in 10m 43s (non-voting)
✔️ ansible-test-sanity-docker-milestone SUCCESS in 12m 05s (non-voting)
✔️ ansible-test-sanity-docker-stable-2.9 SUCCESS in 14m 19s
✔️ ansible-test-sanity-docker-stable-2.10 SUCCESS in 12m 24s
✔️ ansible-test-sanity-docker-stable-2.11 SUCCESS in 10m 17s
✔️ ansible-test-sanity-docker-stable-2.12 SUCCESS in 11m 47s
✔️ ansible-test-sanity-docker-stable-2.14 SUCCESS in 12m 11s
✔️ ansible-test-units-asa-python39 SUCCESS in 5m 05s
✔️ ansible-test-units-asa-python36 SUCCESS in 6m 59s
✔️ ansible-test-units-asa-python37 SUCCESS in 7m 14s
❌ ansible-tox-linters FAILURE in 10m 42s

[softwarefactory-project-zuul]

Build succeeded.
https://ansible.softwarefactory-project.io/zuul/buildset/e1bfb066443d4d59b5eea0e70497ad3d

✔️ ansible-galaxy-importer SUCCESS in 3m 30s
✔️ build-ansible-collection SUCCESS in 9m 38s
✔️ ansible-tox-linters SUCCESS in 11m 48s