### What changes were proposed in this pull request?
This PR proposes to migrate Coverage report from Jenkins to GitHub Actions by setting a dailly cron job.
### Why are the changes needed?
For some background, currently PySpark code coverage is being reported in this specific Jenkins job: https://amplab.cs.berkeley.edu/jenkins/job/spark-master-test-sbt-hadoop-2.7/
Because of the security issue between [Codecov service](https://app.codecov.io/gh/) and Jenkins machines, we had to work around by manually hosting a coverage site via GitHub pages, see also https://spark-test.github.io/pyspark-coverage-site/ by spark-test account (which is shared to only subset of PMC members).
Since we now run the build via GitHub Actions, we can leverage [Codecov plugin](https://github.com/codecov/codecov-action), and remove the workaround we used.
### Does this PR introduce _any_ user-facing change?
Virtually no. Coverage site (UI) might change but the information it holds should be virtually the same.
### How was this patch tested?
I manually tested:
- Scheduled run: https://github.com/HyukjinKwon/spark/actions/runs/1082261484
- Coverage report: 73f0291a7d/python/pyspark
- Run against a PR: https://github.com/HyukjinKwon/spark/actions/runs/1082367175Closes#33591 from HyukjinKwon/SPARK-36092.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
c0d1860f25