lighttpd: update to 1.4.45

Update to 1.4.42 introduced a problem with starting lighttpd as
OpenWrt/LEDE service. It was stopping whole init process at sth like:
  783 root      1124 S    {S50lighttpd} /bin/sh /etc/rc.common /etc/rc.d/S50lighttpd boot
  799 root      1164 S    /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf

It was hanging until getting random pool:
[  176.340007] random: nonblocking pool is initialized
and then immediately the rest of init process followed:
[  176.423475] jffs2_scan_eraseblock(): End of filesystem marker found at 0x0
[  176.430754] jffs2_build_filesystem(): unlocking the mtd device... done.
[  176.437615] jffs2_build_filesystem(): erasing all blocks after the end marker... done.

This was fixed in 1.4.44, but bump directly to 1.4.45 while at it.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>