libtest-harness-perl: upgrade 3.48 -> 3.50

Changelog:
===========
- Simplify runtests for easier extension
- Prevent double summary on bail-out
- Prevent bail_out summary when no handler for it is defined
- Tidy up core dump file
- Simplify injecting of @INC paths
- Better check for t/ directory in Perl handler

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-perl/recipes-perl/libtest/libtest-harness-perl_3.48.bb → meta-perl/recipes-perl/libtest/libtest-harness-perl_3.50.bb

@@ -26,7 +26,7 @@ LICENSE = "Artistic-1.0 | GPL-1.0-or-later"
 LIC_FILES_CHKSUM = "file://README;beginline=29;endline=30;md5=d41d8cd98f00b204e9800998ecf8427e"
 
 SRC_URI = "${CPAN_MIRROR}/authors/id/L/LE/LEONT/Test-Harness-${PV}.tar.gz"
-SRC_URI[sha256sum] = "e73ff89c81c1a53f6baeef6816841b89d3384403ad97422a7da9d1eeb20ef9c5"
+SRC_URI[sha256sum] = "79b6acdc444f1924cd4c2e9ed868bdc6e09580021aca8ff078ede2ffef8a6f54"
 
 UPSTREAM_CHECK_REGEX = "Test\-Harness\-(?P<pver>(\d+\.\d+))(?!_\d+).tar"