libjcat: upgrade 0.2.3 -> 0.2.6

Update packageconfig option to use "gnutls" prefix[1]
Also include tag in the SRC_URI

[1]https://github.com/hughsie/libjcat/commit/d873545c23064620eb884b7e67ff1cda94b891fa

PTEST passed:

root@qemuarm64:~# ptest-runner libjcat
START: ptest-runner
2026-05-21T21:45
BEGIN: /usr/lib/libjcat/ptest
Running test: libjcat/libjcat.test
...
...
# End of jcat tests
PASS: libjcat/libjcat.test
SUMMARY: total=1; passed=1; skipped=0; failed=0; user=5.1s; system=0.1s; maxrss=9688
DURATION: 6
END: /usr/lib/libjcat/ptest
2026-05-21T21:45
STOP: ptest-runner
TOTAL: 1 FAIL: 0

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-oe/recipes-gnome/libjcat/libjcat_0.2.6.bb

@@ -8,20 +8,20 @@ DEPENDS = "\
 "
 
 SRC_URI = "\
-    git://github.com/hughsie/libjcat.git;branch=main;protocol=https \
+    git://github.com/hughsie/libjcat.git;branch=main;protocol=https;tag=${PV} \
     file://run-ptest \
 "
-SRCREV = "f284d18a694ed98f49ddb06e6920265781a30125"
+SRCREV = "4f4bf849c1728ba291f28cea86d140785368fdd0"
 
 inherit gobject-introspection gtk-doc meson ptest-gnome vala lib_package
 
 PACKAGECONFIG ??= "\
     gpg \
-    pkcs7 \
+    gnutls_pkcs7 \
     ${@bb.utils.contains('PTEST_ENABLED', '1', 'tests', '', d)} \
 "
 PACKAGECONFIG[gpg] = "-Dgpg=true,-Dgpg=false,gpgme"
-PACKAGECONFIG[pkcs7] = "-Dpkcs7=true,-Dpkcs7=false,gnutls gnutls-native"
+PACKAGECONFIG[gnutls_pkcs7] = "-Dgnutls_pkcs7=true,-Dgnutls_pkcs7=false,gnutls gnutls-native"
 PACKAGECONFIG[tests] = "-Dtests=true,-Dtests=false"
 
 # manpage generation is broken because help2man needs to run the target binary on the host...