[media-kit] media-video/pipewire-1.6.7 requires an updated version of libsndfile

Nobody has claimed this yet.

```
../pipewire-1.6.7/src/tools/pw-cat.c:219:19: error: ‘SF_FORMAT_MPEG_LAYER_I’ undeclared here (not in a function)
219 | { "mp1", SF_FORMAT_MPEG_LAYER_I, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~
../pipewire-1.6.7/src/tools/pw-cat.c:220:19: error: ‘SF_FORMAT_MPEG_LAYER_II’ undeclared here (not in a function)
220 | { "mp2", SF_FORMAT_MPEG_LAYER_II, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~~
../pipewire-1.6.7/src/tools/pw-cat.c:221:19: error: ‘SF_FORMAT_MPEG_LAYER_III’ undeclared here (not in a function)
221 | { "mp3", SF_FORMAT_MPEG_LAYER_III, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~~~
../pipewire-1.6.7/src/tools/pw-cat.c:223:20: error: ‘SF_FORMAT_OPUS’ undeclared here (not in a function); did you mean ‘SF_FORMAT_OGG’?
223 | { "opus", SF_FORMAT_OPUS, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~
| SF_FORMAT_OGG
../pipewire-1.6.7/src/tools/pw-cat.c:227:28: error: ‘SF_FORMAT_NMS_ADPCM_16’ undeclared here (not in a function); did you mean ‘SF_FORMAT_MS_ADPCM’?
227 | { "nms-adpcm-16", SF_FORMAT_NMS_ADPCM_16, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~
| SF_FORMAT_MS_ADPCM
../pipewire-1.6.7/src/tools/pw-cat.c:228:28: error: ‘SF_FORMAT_NMS_ADPCM_24’ undeclared here (not in a function); did you mean ‘SF_FORMAT_MS_ADPCM’?
228 | { "nms-adpcm-24", SF_FORMAT_NMS_ADPCM_24, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~
| SF_FORMAT_MS_ADPCM
../pipewire-1.6.7/src/tools/pw-cat.c:229:28: error: ‘SF_FORMAT_NMS_ADPCM_32’ undeclared here (not in a function); did you mean ‘SF_FORMAT_MS_ADPCM’?
229 | { "nms-adpcm-32", SF_FORMAT_NMS_ADPCM_32, 1, "f32", SPA_AUDIO_FORMAT_F32, 4, FORMAT_ENCODED },
| ^~~~~~~~~~~~~~~~~~~~~~
| SF_FORMAT_MS_ADPCM
../pipewire-1.6.7/src/tools/pw-cat.c: In function ‘format_from_filename’:
../pipewire-1.6.7/src/tools/pw-cat.c:1822:14: error: ‘SF_FORMAT_MPEG’ undeclared (first use in this function); did you mean ‘SF_FORMAT_MPC2K’?
1822 | case SF_FORMAT_MPEG:
| ^~~~~~~~~~~~~~
| SF_FORMAT_MPC2K
../pipewire-1.6.7/src/tools/pw-cat.c:1822:14: note: each undeclared identifier is reported only once for each function it appears in
```

Reproduce the media-kit/pipewire-1.6.7 build and inspect the libsndfile version used when compiling src/tools/pw-cat.c. Confirm which dependency update exposes the missing format constants, then rerun the build to verify the undeclared-identifier errors are gone.

Written by the indexing model from the issue text.