Merge branch 'pz/fetch-submodule-errors-config' into seen

The 'git fetch' command has been updated to allow configuring how submodule fetch errors are handled. A new configuration variable 'fetch.submoduleErrors' and a corresponding '--submodule-errors' command-line option have been introduced, allowing users to make submodule fetch errors non-fatal (warn instead of fail). Additionally, a premature failure during recursive submodule fetches has been fixed by deferring the error until the OID-based retry phase also fails. * pz/fetch-submodule-errors-config: fetch: add fetch.submoduleErrors to make submodule fetch errors non-fatal submodule: fix premature failure in recursive submodule fetch