There is an updated pull request by newbluemoon against master on the void-packages repository

https://github.com/newbluemoon/void-packages gstreamer
https://github.com/void-linux/void-packages/pull/33997

gstreamer: update to 1.18.5
Current `gst-plugins-base1` 1.18.4 fails to build right now; an update to 1.18.5 fixes this.
Not runtime-tested, yet.

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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A patch file from https://github.com/void-linux/void-packages/pull/33997.patch is attached