fix[ci]: use cargo +nightly in publish (#4011)

`cargo +nightly publish -Z package-workspace --no-verify --allow-dirty
--workspace --dry-run` works locally

Signed-off-by: Joe Isaacs <[email protected]>

Author: joseph-isaacs

.github/workflows/publish.yml

@@ -27,11 +27,10 @@ jobs:
 
       - name: Release
         run: |
-          cargo publish -Z package-workspace --no-verify --allow-dirty --workspace \
+          cargo +nightly publish -Z package-workspace --no-verify --allow-dirty --workspace \
           --exclude bench-vortex \
           --exclude vortex-python \
           --exclude vortex-duckdb \
-          --exclude vortex-duckdb \
           --exclude vortex-ffi \
           --exclude vortex-fuzz \
           --exclude vortex-jni \