Bug report: AES Decrypt GCM Mode doesn't support truncated tag size of 12 bytes

**Describe the bug**
For some reason AES Decrypt fails if the GCM Tag is not 16 bytes.
I assume the fault is in some external crypto library that is used here?

**To Reproduce**
Recipe is AES Decrypt
Key base64: `IZKzlCW70ItujmHF0fG8n0KPxWn7xveMC8SPzNsPQq4=`
IV base64: `4eWS6HIlhHwR2Uho`
Mode: `GCM`
Input: `Hex`
Output: `Raw`
GCM Tag hex: `c1c4876c8853a226d6ce1ed2`

Input: `d5f9d2a874d6e8a10fc397af96d3f8e6965a003d02a88db1c85bdebfc35b11`

Result:
> AES Decrypt - Error in https://gchq.github.io/CyberChef/modules/Ciphers.js on line 2.

Message: Authentication tag does not match tag length.

**Expected behaviour**
Output should be `{"steamId":"76561198049878030"}`

**Additional context**

If we use the untruncated 16 byte tag hex `7b37b10224dc12ba7bc7094584da206a`, it works.

For encryption I used Crypto++ C++ library. I had to truncate the tag to 12 bytes because the .NET AesGcm implementation only accepts a 12 byte tag.
And in .NET it works just fine.

Equivalent .NET 7 code
```cs
string keyb64 = "IZKzlCW70ItujmHF0fG8n0KPxWn7xveMC8SPzNsPQq4=";
string cipherTextb64 = "1fnSqHTW6KEPw5evltP45pZaAD0CqI2xyFvev8NbEQ==";
string ivb64 = "4eWS6HIlhHwR2Uho";
string tagb64 = "wcSHbIhToibWzh7S";

var aesGcm = new System.Security.Cryptography.AesGcm(Convert.FromBase64String("IZKzlCW70ItujmHF0fG8n0KPxWn7xveMC8SPzNsPQq4="));
var result = new byte[128];
aesGcm.Decrypt(
System.Convert.FromBase64String(ivb64),
System.Convert.FromBase64String(cipherTextb64),
System.Convert.FromBase64String(tagb64),
new Span(result, 0, System.Convert.FromBase64String(cipherTextb64).Length)
);
Console.WriteLine(System.Text.Encoding.UTF8.GetString(result));
```
You can run it here: https://dotnetfiddle.net/wH0nkE

Also as a by the way, it would be nice if we could choose the Tag length on AES Encrypt.