print/epson-inkjet-printer-escpr: Update to 1.7.26
New PPD files for the following models have been added.
EP-315 series
PX-S155 series
PX-S505 series
WF-2110 series
XP-65 series
WF-M1130 series
No file changes for autoconf, so fixed to use 2.69.
pkg-descr was re-quoted from the description for other packages, not from the README.
PR: 270169