Interactive transactions requires verbose API

[penberg]

Interactive transactions require to use the verbose API:

await tx.execute({sql: "INSERT INTO users (id, name) VALUES (?, ?)", args: [3, "Charlie"]});
await tx.execute({sql: "INSERT INTO users (id, name) VALUES (?, ?)", args: [4, "Eve"]});

Let's add support for the simpler one:

await tx.execute("INSERT INTO users (id, name) VALUES (?, ?)", [3, "Charlie"]);
await tx.execute("INSERT INTO users (id, name) VALUES (?, ?)", [4, "Eve"]);

[penberg]

CC @notrab @giovannibenussi