Migrate to softprops/action-gh-release. (#1307)
Migrate to softprops/action-gh-release. (#1307)

Eric noticed both the actions/create-release and
actions/upload-release-asset GitHub repositories had been archived. This
converts our two-step create and upload into one step using the
reccomendd replacement action.
jsirois/pex,pantsbuild/pex,pantsbuild/pex,jsirois/pex