libsql-sqlite3: Fix statement interruption signaling

We need to set some database and statement state to propagate the
interrupt error correctly.

Author: penberg

libsql-sqlite3/src/vdbeapi.c

@@ -914,10 +914,13 @@ int sqlite3_step(sqlite3_stmt *pStmt){
   if( vdbeSafetyNotNull(v) ){
     return SQLITE_MISUSE_BKPT;
   }
+  db = v->db;
   if( v->isInterrupted ){
-    return SQLITE_INTERRUPT;
+    rc = SQLITE_INTERRUPT;
+    v->rc = rc;
+    db->errCode = rc;
+    return rc;
   }
-  db = v->db;
   sqlite3_mutex_enter(db->mutex);
   while( (rc = sqlite3Step(v))==SQLITE_SCHEMA
          && cnt++ < SQLITE_MAX_SCHEMA_RETRY ){