Plaintext values with mode=strict do not throw errors

Given this schema:

```prisma
model EncryptionTest {
id String @id
data String? /// @encrypted?mode=strict
}
```

and this test:

```ts
await prisma.$queryRawUnsafe(
`INSERT INTO encryption_test (id, data) VALUES ('id', 'plaintextdata')`,
);

const encryptionTest = await prisma.encryptionTest.findFirst({
where: { id: 'id' },
});
```

I would expect this test case to throw an exception. Is my understanding incorrect?

It's a simple fix if indeed it's unexpected behaviour. https://github.com/47ng/prisma-field-encryption/blob/next/src/encryption.ts#L179 is currently

```ts
if (!cloakedStringRegex.test(cipherText)) {
return
}
```

so if a field is in the database as plaintext (which doesn't match the cloakedStringRegex) then strict mode is not taken into account. Proposed fix:

```ts
if (!cloakedStringRegex.test(cipherText)) {
if (fieldConfig.strictDecryption) {
throw new Error('Value is not encrypted and mode=strict')
}
return
}
```