Try zstd on nightly Rust.

Author: khuey

.github/workflows/main.yml

@@ -94,7 +94,7 @@ jobs:
       env:
         RUSTFLAGS: "-C link-arg=-Wl,--compress-debug-sections=zlib"
     - run: cargo test
-      if: contains(matrix.os, 'ubuntu-24.04')
+      if: contains(matrix.os, 'ubuntu-24.04') || contains(matrix.rust, 'nightly')
       env:
         RUSTFLAGS: "-C link-arg=-Wl,--compress-debug-sections=zstd"