chore(db): avoid rowid for blocks and blocklists (#10315)

### Purpose

Noticed "large" autgenerated indices on blocks and blocklists in
https://forum.syncthing.net/t/database-or-disk-is-full-might-be-syncthing-might-be-qnap/24930/7

They both have a primary key and don't need rowids

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internal/db/sqlite/sql/schema/folder/50-blocks.sql

@@ -14,7 +14,7 @@
 CREATE TABLE IF NOT EXISTS blocklists (
     blocklist_hash BLOB NOT NULL PRIMARY KEY,
     blprotobuf BLOB NOT NULL
-) STRICT
+) STRICT, WITHOUT ROWID
 ;
 
 -- Blocks
@@ -30,5 +30,5 @@ CREATE TABLE IF NOT EXISTS blocks (
     size INTEGER NOT NULL,
     PRIMARY KEY (hash, blocklist_hash, idx),
     FOREIGN KEY(blocklist_hash) REFERENCES blocklists(blocklist_hash) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED
-) STRICT
+) STRICT, WITHOUT ROWID
 ;