fix: include orioledb_16 in cache upload on pr merge to main (#54)

Author: samrose

Diff for: .github/workflows/cache-upload.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: build and copy to S3
         run: |
-          for x in 15 16; do
+          for x in 15 16 orioledb_16; do
             nix build .#psql_$x/bin -o result-$x
           done
           nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key ./result*