dvbcut-0.7.4-bp156.1.2

- Use cleaner package version detection method

- Reintroduce modified dvbcut-a52.patch to build against liba52
  0.7.x
- Add dvbcut-autoconf269.patch
- Have Leap also build against ffmpeg 5

- Drop dvbcut-a52.patch (build fails with a52dec 0.8.0)

- Update to version 0.7.4:
  + Updated autotools files.
  + Build with ffmpeg 5.

- Update to version 0.7.3
  * Be able to build with Qt5 utils with -qt5 postfix.
  * Fix issue with reencoded frames appear with 50 FPS.
  * Switch copyright-format URL from http to https.
  * Bump standards version from 3.9.8 to 4.1.4.
  * Bump debhelper version from 10 to 11.
  * Remove trailing whitespace from debian files.
- Dropped dvbcut-qt5_utils.patch (merged upstream)
- Refreshed dvbcut-appicon.patch

- Initial package (version 0.7.2)