* feat(op-program): Use `PebbleDB` for `DiskKV` (#11705)

* feat(op-program): Use `PebbleDB` for `DiskKV`

* close db

* fix `testFaultProofProgramScenario` tests

* switch to snappy compression

https://github.com/cockroachdb/pebble/issues/3434

* fix tempdir

* update compat release

* defer k/v until preimage server and hinter have both exited

* Only open preimage source when actually needing preimages.

Avoids concurrent access to the pebbledb.

* op-program: Handle interrupts in host

Ensures the preimage kv store is closed cleanly even when the process is sent an interrupt signal.
Enables non-blocking IO so that read calls return io.EOF when a file handle is closed rather than blocking forever.

* op-program: Restore file based kv store. Add pebble as an additional option.

* op-program: Add option to specify KV store format to use

* op-program: Switch pebble to perform sync writes.

* op-program: Rename disk kv to file kv

* op-program: Rename DBFormat to DataFormat for consistency.

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Co-authored-by: clabby <ben@clab.by>