Mostly race condition fixes.
"winegstreamer: Do waits for samples on stream-specific work queues." works around a Gstreamer bug that I'll try to write a minimal reproducer for and submit to their bug tracker. For now, doing sample waits actually concurrently works around the problem.
"winegstreamer: Fixate caps in autoplug_continue_cb." so far I've only seen relevant when the source is a uridecodebin (in Proton), but I though it couldn't hurt to upstream it too.
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v2: winegstreamer: Handle Gstreamer pipeline flushes gracefully in the media source.
winegstreamer: Ignore an assert in wg_parser.
winegstreamer: Don't only accept segment events when streams are enabled.
https://gitlab.winehq.org/wine/wine/-/merge_requests/5917