python-installer: bump to 1.0.1

python-installer: bump to 1.0.1

1.0.1 fixes a false-positive path-traversal check in destinations.py:
the 1.0.0 code used Path.resolve() to validate that each installed file
stays within the --destdir, but Path.resolve() follows symlinks.
OpenWrt's staging dir and toolchain directories contain many symlinks,
so resolved paths could escape the destdir comparison and trigger:

  ValueError: Attempting to write <file> outside of the target directory

1.0.1 replaces Path.resolve() with os.path.abspath(), which normalises
the path without following symlinks, eliminating the false positive.

Signed-off-by: Alexandru Ardelean <redacted>