Update README.md - fix broken status link for CI build

[nickboldt]

What does this PR do?

Update README.md - fix broken status link for CI build

What issues does this PR fix or reference?

Is it tested? How?

Open README.md in a browser or other markdown renderer.

Note this now non-broken badge:

Release Notes

Docs PR

[che-bot]

Click here to review and test in web IDE:

[nickboldt]

New badge:

[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-940

[codecov]

Codecov Report

Merging #940 (8b566c3) into main (333d6cf) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #940   +/-   ##
=======================================
  Coverage   82.59%   82.59%           
=======================================
  Files         365      365           
  Lines       37941    37941           
  Branches     2414     2414           
=======================================
  Hits        31338    31338           
  Misses       6579     6579           
  Partials       24       24           

Flag	Coverage Δ
unittests	82.59% <ø> (ø)

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: akurinnoy, nickboldt, olexii4

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[nickboldt]

@olexii4 @akurinnoy thanks for the approvals but you could have saved a step and just merged this. :)

[devstudio-release]

Build 3.10 :: dashboard_3.x/353: Console, Changes, Git Data

[devstudio-release]

Build 3.10 :: sync-to-downstream_3.x/4869: Console, Changes, Git Data

[devstudio-release]

Build 3.10 :: get-sources-rhpkg-container-build_3.x/4689: Console, Changes, Git Data

[devstudio-release]

Build 3.10 :: get-sources-rhpkg-container-build_3.x/4689:

dashboard : 3.x :: Failed in : BREW:BUILD/STATUS:UNKNOWN
FAILURE:; copied to quay