[to #526] Add codecov on Github Action (#524)

[ti-srebot]

cherry-pick #524 to release-3.2
You can switch your code base to this Pull Request by using git-extras:

# In client-java repo:
git pr https://github.com/tikv/client-java/pull/562

After apply modifications, you can push your change to this PR via:

git push git@github.com:ti-srebot/client-java.git pr/562:release-3.2-49476d7fa0db

---

Signed-off-by: andylokandy andylokandy@hotmail.com

Ref #526

What is changed and how it works?

Add CI using Github Action. Intended to replace jenkins.

Code changes

• No code

Check List for Tests

• No code

[ti-srebot]

/run-all-tests

[zz-jason]

LGTM

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-3.2@80cf825). Click here to learn what that means.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             release-3.2     #562   +/-   ##
==============================================
  Coverage               ?   30.77%           
  Complexity             ?     1269           
==============================================
  Files                  ?      278           
  Lines                  ?    17343           
  Branches               ?     1975           
==============================================
  Hits                   ?     5337           
  Misses                 ?    11415           
  Partials               ?      591           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 80cf825...026412c. Read the comment docs.

[iosmanthus]

LGTM