DL migrate DB.

[fchirica]

Old DB constrains won't allow Status.PENDING_BATCH as a potential root status, due to this check:

status INTEGER NOT NULL CHECK(
 {" OR ".join(f"status == {status}" for status in Status)}
 ),

This PR introduces a one time migration which will update the check with Status.PENDING_BATCH as well

[coveralls-official]

Pull Request Test Coverage Report for Build 8558268682

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 82 of 83 (98.8%) changed or added relevant lines in 3 files are covered.
• 32 unchanged lines in 11 files lost coverage.
• Overall coverage decreased (-0.009%) to 90.952%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
chia/data_layer/data_store.py	19	20	95.0%

Files with Coverage Reduction	New Missed Lines	%
chia/rpc/rpc_server.py	1	89.0%
chia/wallet/wallet_node.py	1	88.42%
chia/data_layer/dl_wallet_store.py	1	95.74%
chia/timelord/timelord.py	2	73.67%
chia/full_node/weight_proof.py	2	90.88%
chia/data_layer/data_layer_wallet.py	2	91.1%
chia/util/streamable.py	3	98.51%
chia/_tests/core/util/test_lockfile.py	4	88.66%
chia/server/server.py	4	80.52%
chia/full_node/full_node.py	5	85.41%

Totals
Change from base Build 8526710801:	-0.009%
Covered Lines:	98415
Relevant Lines:	108186

---

💛 - Coveralls

[emlowe]

In my rather full "CADT" db, this migration took 192s (over 3 mins). Not sure if I have any better ideas...

[emlowe]

Let's add a small test for the raise Exception("Unknown version") error condition