Exclude experimental crates from cross-compilation

Author: vcjana

.github/workflows/ci.yml

@@ -359,7 +359,7 @@ jobs:
       run: cargo install cross --git https://github.com/cross-rs/cross
     - name: Test smithy-rs runtime on ${{ matrix.target }}
       working-directory: smithy-rs/rust-runtime
-      run: cross test --target ${{ matrix.target }} --workspace
+      run: cross test --target ${{ matrix.target }} --workspace --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
     - name: Test AWS runtime on ${{ matrix.target }}
       working-directory: smithy-rs/aws/rust-runtime
       run: cross test --target ${{ matrix.target }} --workspace