Log Message:
graphics/graphviz: Update to 7.1.0

## [7.1.0] – 2023-01-21

### Added

- The command line option `--help` has been added as an alias for `-?`. #1618
- The command line option `--version` has been added as an alias for `-V`. #1618

### Fixed

- The Autotools build system no longer errors when attempting libANN discovery
  during cross-compilation. This was a regression in Graphviz 7.0.6. #2335
- Graphs with more than 46341 (⌈√INT_MAX⌉) nodes no longer crash `twopi`. #1999
- Compatibility with `/bin/sh` has been restored in the Autotools build system.
  This was a regression in Graphviz 7.0.6. This restores the ability to compile
  on NetBSD which was fixed in 7.0.4 but regressed in 7.0.6. #2340
- `ccomps` no longer crashes when failing to open files.