releaser: Fix BuildDate in release binaries
releaser: Fix BuildDate in release binaries

Fixes #4299

fedelibre/hugo,mdhender/hugo,gohugoio/hugo,mdhender/hugo,gohugoio/hugo,mdhender/hugo,fedelibre/hugo,anthonyfok/hugo,gohugoio/hugo,anthonyfok/hugo,fedelibre/hugo,fedelibre/hugo,anthonyfok/hugo,mdhender/hugo