multimedia/gstreamer1-plugins-rust: unbreak build on i386

fatal runtime error: Rust cannot catch foreign exceptions
thread '<unnamed>' panicked at '/wrkdirs/usr/ports/lang/rust/work/rustc-1.70.0-src/compiler/rustc_codegen_ssa/src/back/write.rs:1535:21: worker thread panicked', compiler/rustc_middle/src/util/bug.rs:36:26
error: could not compile gst-plugin-aws (lib)

(signal: 6, SIGABRT: process abort signal)

Reported by: pkg-fallout

(cherry picked from commit eedc078964e546ac1e4a0b59a51d10e0f7263d58)
(cherry picked from commit 359c86d8812d78f6d7871739e0ccc4f1ccebc726)
(cherry picked from commit 3e78ac41f17524591589aa00e50fddd20a2e8014)