exiv2-0.28.3-160000.2.2

- update to 0.28.3 (bsc#1227528, CVE-2024-39695):
  * Release Notes:
    + https://github.com/Exiv2/exiv2/issues/3008
    + https://github.com/Exiv2/exiv2/milestone/14?closed=1
  * This release also fixes a low-severity security issue in
    asfvideo.cpp: out-of-bounds read in AsfVideo::streamProperties.

- use --parallel as single-dash parameters are eaten by
  ctest's rpm macro

- Fix build with --nochecks

- update to 0.28.2 (bsc#1219870, CVE-2024-24826, bsc#1219871,
  CVE-2024-25112):
  * CVE-2024-24826: out-of-bounds read in
    QuickTimeVideo::NikonTagsDecoder.
  * CVE-2024-25112: denial of service due to unbounded
    recursion in QuickTimeVideo::multipleEntriesDecoder.

- update to 0.28.1 (bsc#1216923, CVE-2023-44398):
  * Release Notes:
    https://github.com/Exiv2/exiv2/issues/2813
- drop exiv2-metadata-null-checks.patch (upstream)

- add exiv2-metadata-null-checks.patch fixes gwenview crashes and
  other apps https://github.com/Exiv2/exiv2/issues/2638

- add a x86-64-v3 build, remove 32bit build (not used)

- drop old C++ standard hack (patched line dropped in 0.28)
- use g++-11 for Leap 15 builds (fix for failed std::filesystem
  check)

- update to 0.28.0:
  - long list of improvements and security fixes, see
  https://github.com/Exiv2/exiv2/issues/2406#issuecomment-1529139799
- drop always-use-signed-char-for-conversion.patch (code no longer exists)
- drop CVE-2022-3953.patch (merged upstream)
- drop xml-static subpackage, cannot be built from shared builds anymore
  and appears to be unused

- add always-use-signed-char-for-conversion.patch for test suite
  fixes on non-x86_64