zlib-ng: Update to version 2.2.5

zlib-ng: Update to version 2.2.5

- Update from version 2.2.4 to 2.2.5
- Update of rootfile
- Changelog
    2.2.5
	Important fixes
	    RiscV: chunkset_rvv: fix SIGSEGV in CHUNKCOPY #1889
	    MSVC: Disable optimizations for AVX512 GET_CHUNK_MAG causing inflate
		failure #1884
	    Fix building with runtime CPU detection disabled (native) #1931
	    Also check for ZMM support when detecting VPCLMULQDQ support #1932
	    Revert "Clean up insert_match() in deflate_medium" due to performance
		regression #1938
	Buildsystem
	    Pass POSIX_C_SOURCE for std::alligned_alloc try_compile checks #1896
	    X86_AVX512VNNI: check for _mm256_dpbusd_epi32 too #1944
	    CMake: Fix incorrect declaration of FORCE_SSE2 #1880
	    CMake: Fix CXXFLAGS when coverage enabled #1902
	    CMake: Remove late enable_language calls #1903
	    CMake: [FreeBSD] Define _XOPEN_SOURCE for gtest_zlib #1900
	    CMake: Add bindir into zlib.pc.in for compatibility with Cygwin and Msys2
		#1920
	    Configure: riscv: add bash configure script support for riscv 1904
	Tests/Benchmarks
	    Test: Fix pointer type mismatch #1897
	    Test: Add large 1mb buffer test for crc32 hashing #1913
	    Changes to running benchmark during tests #1892
	CI
	    CI: Restore support macOS prior 10.15 #1878
	    CI: fixes for RISC-V #1890
	    CI: Preinstall packages needed for testing and benchmark #1894
	    CI: Remove deprecated ubuntu-20.04 image from CI #1898
	    CI: Replace deprecated windows-2019 with windows-2022 #1923
	Misc
	    Add .gitignore to allow run tests with zlib-ng/corpora and local dataset
		from working copy #1930

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