www/kf5-kjs: unbreak after 020693c166d1

• Could NOT find Perl (missing: PERL_EXECUTABLE)

[...]

• The following REQUIRED packages have not been found:
• Perl, http://www.perl.org Needed for building kdelibs

CMake Error at /usr/local/share/cmake/Modules/FeatureSummary.cmake:464 (message):

feature_summary() Error: REQUIRED package(s) are missing, aborting CMake
run.

Call Stack (most recent call first):

CMakeLists.txt:88 (feature_summary)

PR: 266007