upgrade to latest rust-rocksdb

We gotta overrideAttrs to set the src and version to a newer version
than nixpkgs has now.

flake.lock

@@ -241,6 +241,23 @@
         "type": "github"
       }
     },
+    "rocksdb": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1730475155,
+        "narHash": "sha256-u5uuShM2SxHc9/zL4UU56IhCcR/ZQbzde0LgOYS44bM=",
+        "owner": "facebook",
+        "repo": "rocksdb",
+        "rev": "3c27a3dde0993210c5cc30d99717093f7537916f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "facebook",
+        "ref": "v9.7.4",
+        "repo": "rocksdb",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "attic": "attic",
@@ -250,6 +267,7 @@
         "flake-utils": "flake-utils",
         "nix-filter": "nix-filter",
         "nixpkgs": "nixpkgs_2",
+        "rocksdb": "rocksdb",
         "rust-manifest": "rust-manifest"
       }
     },