Operating system: Mac OSX Big Sur 11.2
When you encountered this error SSL certificate problem: unable to get local issuer certificate means that local git command cannot verify SSL validity.
For my scenario, I blocked all ocsp.* related domain to prevent personal privacy leaks to FAANG cooperation or provider.
Cause
This error occurs when a self-signed certificate cannot be verified.
Workaround
Tell git to not perform the validation of the certificate using the global option:
git config --global http.sslVerify false
Please be advised disabling SSL verification globally might be considered a security risk and should be implemented only temporarily
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