poppler 0.26.4

Closes #31788.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
poppler: update 0.26.4 bottle.
add onepass.rb (new formula)
remove non-functioning test; cli 'help' test ensures paths and imports are correct
switch to archive tarball; clean up quotes; run build tests during build phase
copy test dataset into Cellar; run test to ensure expected results
onepass: add 0.2.1 bottle.