Fix readme build badge (hotfix to master)

[sequba]

Context

This PR includes cherry-picked changes from:

• Use Node 20 in all the build/test workflows #1435
• Update build badge in readme to show the build workflow status instead of test #1443

that will fix the build: failing badge in the readme on master branch.

Types of changes

• Breaking change (a fix or a feature because of which an existing functionality doesn't work as expected anymore)
• New feature or improvement (a non-breaking change that adds functionality)
• Bug fix (a non-breaking change that fixes an issue)
• Additional language file, or a change to an existing language file (translations)
• Change to the documentation

Checklist:

• I have reviewed the guidelines about Contributing to HyperFormula and I confirm that my code follows the code style of this project.
• I have signed the Contributor License Agreement.
• My change is compliant with the OpenDocument standard.
• My change is compatible with Microsoft Excel.
• My change is compatible with Google Sheets.
• I described my changes in the CHANGELOG.md file.
• My changes require a documentation update.
• My changes require a migration guide.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.22%. Comparing base (a91f5d7) to head (0c2e214).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1445   +/-   ##
=======================================
  Coverage   97.22%   97.22%           
=======================================
  Files         169      169           
  Lines       14430    14430           
  Branches     3101     3101           
=======================================
  Hits        14029    14029           
+ Misses        401      395    -6     
- Partials        0        6    +6     

see 3 files with indirect coverage changes

[github-actions]

Performance comparison of head (92ab78e) vs base (a91f5d7)

                                     testName |   base |   head | change
------------------------------------------------------------------------
                                      Sheet A | 517.57 |  529.1 | +2.23%
                                      Sheet B | 167.24 | 177.76 | +6.29%
                                      Sheet T | 147.62 | 154.23 | +4.48%
                                Column ranges | 518.81 | 527.66 | +1.71%
Sheet A:  change value, add/remove row/column |  16.29 |  16.04 | -1.53%
 Sheet B: change value, add/remove row/column |  140.6 |  147.7 | +5.05%
                   Column ranges - add column | 160.07 | 162.96 | +1.81%
                Column ranges - without batch | 489.63 | 487.23 | -0.49%
                        Column ranges - batch | 121.58 | 117.66 | -3.22%