pkgtools/pkglint: Update to 22.4.1

Changes since 22.4.0:

Allow pkglint to be run outside the pkgsrc top directory, in order to
allow individual makefiles to be formatted and checked as well. The many
pkgsrc-specific checks don't apply in this case. This mode is
experimental, there are still crashes to be expected.

Fix a crash for syntactically invalid conditions in '.if'.

Fix parsing of dependency lines that contain an escaped '#', which is
used for switching to another shell using a '.SHELL: ...' line.

(rillig)