Backport of "gst-plugins-rs: Build glib/gio bindings with 2.74 API support" into 1.22
Backport of !1086 (merged) "gst-plugins-rs: Build glib/gio bindings with 2.74 API support".
Commits:
- c798ca6c gst-plugins-rs: Build glib/gio bindings with 2.74 API support