[MAINT] Fix typo in backfill-docs.yml and make builds work for older versions - #2380

[MAINT] Fix typo in backfill-docs.yml and make builds work for older versions#2380

ndgrigorian wants to merge 3 commits into

masterIntelPython/dpctl:masterfrom

fix-docs-backfill-workflowIntelPython/dpctl:fix-docs-backfill-workflowCopy head branch name to clipboard