shout2send: non-blocking I/O usage in libshout has had breaking changes

Trying to use the shout2send plugin with gst-plugins-base 1.18.3-1 on Arch: https://archlinux.org/packages/extra/x86_64/gst-plugins-good/

Which links libshout-2.4.5: https://archlinux.org/packages/extra/x86_64/libshout/

Attempting to connect to a local Icecast server with the following:

$ docker run -d --name icecast -p 9001:8000 --restart=always infiniteproject/icecast

$ gst-launch-1.0 -m -v audiotestsrc wave=ticks ! audiomixer ! opusenc ! oggmux ! \
shout2send mount='foo.ogg' port=9001 ip=localhost password=hackme username=source

I get this error message on the bus and gst-launch quits:

Got message #68 from element "shout2send0" (error): GstMessageError, gerror=(GError)NULL, debug=(string)"../gst-plugins-good/ext/shout2/gstshout2.c\(635\):\ gst_shout2send_connect\ \(\):\ /GstPipeline:pipeline0/GstShout2send:shout2send0:\012shout_open\(\)\ failed:\ err\=Please\ retry\ current\ operation.";

This seems to be related to the following issue: https://gitlab.xiph.org/xiph/icecast-libshout/-/issues/2316

However, as mentioned in the issue above, it's not clear whether libshout should be handling the SHOUTERR_RETRY error code internally or not. Additionally, this other issue seems to suggest that it's not possible to correctly handle this code outside libshout, at least when returned from shout_open(): https://gitlab.xiph.org/xiph/icecast-libshout/-/issues/2325