libarchive: Update to version 3.7.0

libarchive: Update to version 3.7.0

- Update from version 3.6.2 to 3.7.0
- Update of rootfile
- Changelog
    3.7.0 is a feature and bugfix release.
	New features:
	    bsdunzip: new tool ported from FreeBSD (#1873)
	    drop-in replacement for Info-ZIP unzip, not yet ported for Windows
	    7zip reader: support for Zstandard compression (#1894)
	    7zip reader: support for ARM64 filter (#1918)
	    zstd filter: support for multi-frame zstd archives (#1818)
	Other notable bugfixes and improvements:
	    pax: fix year 2038 problem on platforms with 64-bit time_t (#1840)
	    Windows: Universal Windows Platform (UWP) fixes and improvements (#1879, #1883, #1885, #1840)
	    Windows: bcrypt usage fixes and improvements (#1881, #1887)
	    Windows: time function usage fixes and improvements (#1820, #1824, #1830)

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>