Update RocksDB 10.2.1 -> 10.5.1 to match version used in nix

Author: glyh

opam.export

@@ -49,7 +49,7 @@ roots: [
   "qcheck-alcotest.0.20"
   "re2.v0.14.0"
   "rocks.0.2.0"
-  "rocksdb_stubs.10.2.1"
+  "rocksdb_stubs.10.5.1"
   "rpc_parallel.v0.14.0"
   "sexp_diff_kernel.v0.14.0"
   "sodium.dev"
@@ -250,7 +250,7 @@ installed: [
   "res.5.0.1"
   "result.1.5"
   "rocks.0.2.0"
-  "rocksdb_stubs.10.2.1"
+  "rocksdb_stubs.10.5.1"
   "rpc_parallel.v0.14.0"
   "rresult.0.6.0"
   "seq.base"