libarchive: bump to 3.8.1

[graysky2]

This is a feaure and bugfix release.

New features:
bsdtar: support --mtime and --clamp-mtime (#2601)
lib: mbedtls 3.x compatibility (#2602)
7-zip reader: improve self-extracting archive detection (#2088) xar: xmllite support for the XAR reader and writer (#2388) zip writer: added XZ, LZMA, ZSTD and BZIP2 support (#2137, #2284, #2391) zip writer: added LZMA + RISCV BCJ filter (#2403)

Notable security fixes:
rar: do not skip past EOF while reading (#2584)
rar: fix double free with over 4 billion nodes (#2598) rar: fix heap-buffer-overflow (#2599)
warc: prevent signed integer overflow (#2568)
tar: fix overflow in build_ustar_entry (#2588)

Notable bugfixes:
ibarchive: fix FILE_skip regression (#2642)
compress: Prevent call stack overflow (#2649)
iso9660: always check archive_string_ensure return value (#2651) tar: Support negative time values with pax (#2634) tar: Reset accumulated header state after reading macOS metadata blob (#2636) tar: Keep block alignment after pax error (#2637)
tar: Handle extra bytes after sparse entries (#2643) windows: check archive_wstring_ensure return value (#2652) bsdtar: don't hardlink negative inode files together (#2587) gz: allow setting the original filename for gzip compressed files (#2544) lib: improve lseek handling (#2564)
lib: support @-prefixed Unix epoch timestamps as date strings (#2606) rar: support large headers on 32 bit systems (#2596) tar reader: Improve LFS support on 32 bit systems (#2582)

Full changelog: libarchive/libarchive@v3.7.9...v3.8.1

📦 Package Details

Maintainer: @morgenroth
_{(You can find this by checking the history of the package Makefile.)}

Description:

---

🧪 Run Testing Details

• Build system: x86/64
• Build-tested: x86/64
• Run-tested: x86/64

---

✅ Formalities

• I have reviewed the CONTRIBUTING.md file for detailed contributing guidelines.

If your PR contains a patch:

• It can be applied using git am
• It has been refreshed to avoid offsets, fuzzes, etc., using

  make package/<your-package>/refresh V=s

• It is structured in a way that it is potentially upstreamable
  _{(e.g., subject line, commit description, etc.)
  We must try to upstream patches to reduce maintenance burden.}

[neheb]

https://downloads.openwrt.org/snapshots/faillogs/aarch64_cortex-a76/packages/fwupd/compile.txt got broken at some point.

[robimarko]

@neheb Looks like this:
libarchive/libarchive#2667

Due to:
libarchive/libarchive@4472017

We are only passing CMAKE_INSTALL_LIBDIR for host Cmake builds, not target ones.
Yeah, passing -DCMAKE_INSTALL_LIBDIR=lib to restore the previous behaviour installs pkgconfig file into lib and then we install it into staging.