[Storage] Upgrade to Pebble 2

[zhangchiqing]

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Work towards: https://github.com/onflow/flow-go/issues/7265

This PR upgrades:

• pebble from v1.1.2 to v2.0.3
• github.com/ipfs/go-ds-pebble from v0.3.1 to v0.8.2 (which depends on pebble v2.0.3)

Tested that the upgrade is backward compatible, which means the following process works:

• running execution node with protocol state and execution data in badger
• running db-migration to copy all key-value pairs from badger to pebble for protocol state and execution data in pebble 1.0
• start up the execution node with pebble 2, and the node should be able execute blocks, this means pebble 2 is able to recognize the sstable created by pebble 1 in previous step.
• also verified that chunk data pack database stored in pebble 1 format can be read by pebble 2 (backward compatible)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
storage/migration/sstables.go	70.00%	3 Missing :warning:
...cutiondatasync/storage/pebble_datastore_manager.go	0.00%	1 Missing :warning:

:loudspeaker: Thoughts on this report? Let us know!

[zhangchiqing]

The TestRemoveDiskUsage/PebbleStorage test case is failing, seems without additional config pebble2 can not reclaim disk space after removing data and triggering compaction. Will have to give another look.