Temporarily disable CI on Haiku (#2351)

Issue #2350

Author: asomers

.github/workflows/ci.yml

@@ -299,7 +299,9 @@ jobs:
           # Temporarily disable armv7-unknown-linux-uclibceabihf
           # https://github.com/nix-rust/nix/issues/2200
           #- target: armv7-unknown-linux-uclibceabihf
-          - target: x86_64-unknown-haiku
+          # Temporarily disable x86_64-unknown-haiku
+          # https://github.com/nix-rust/nix/issues/2350
+          #- target: x86_64-unknown-haiku
           # Disable hurd due to
           # https://github.com/nix-rust/nix/issues/2306
           # - target: i686-unknown-hurd-gnu