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<!-- Describe the issue -->

**Expected behavior**

When I make a json-rpc call to `getblock` with:

```json
{
    "jsonrpc": "1.0",
    "id": "curltest",
    "method": "getblock",
    "params": ["37351c7060ec3a149af1bbc9ebcc436c0ee652f96559ef1fe9bc45d11000f061", "2"]
}
```
An error should be returned with the [expected data type](https://developer.bitcoin.org/reference/rpc/getblock.html#argument-2-verbosity)(number) for `verbosity`.
<!--- What behavior did you expect? -->

**Actual behavior**

<!--- What was the actual behavior (provide screenshots if the issue is GUI-related)? -->

Received `"message": "JSON value is not a boolean as expected"` as an error message which is not the [expected data type](number) (https://developer.bitcoin.org/reference/rpc/getblock.html#argument-2-verbosity) for `verbosity`

**To reproduce**

Use this curl on a node

```
curl --location --request POST "127.0.0.1:8332" \
--header "Content-Type: application/json" \
--header "Authorization: Basic YOUR_AUTH" \
--data "{
    \"jsonrpc\": \"1.0\",
    \"id\": \"curltest\",
    \"method\": \"getblock\",
    \"params\": [\"37351c7060ec3a149af1bbc9ebcc436c0ee652f96559ef1fe9bc45d11000f061\", \"2\"]
}"
```

**System information**
* self-compiled

<!-- What version of Bitcoin Core are you using, where did you get it (website, self-compiled, etc)? -->

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<!-- Any extra information that might be useful in the debugging process. -->
<!--- This is normally the contents of a `debug.log` or `config.log` file. Raw text or a link to a pastebin type site are preferred. -->

const UniValue stats_univalue = request.params[1].get_array();
        for (unsigned int i = 0; i < stats_univalue.size(); i++) {
            const std::string stat = stats_univalue[i].get_str();
            stats.insert(stat);
        }
    }
    const CBlock block = GetBlockChecked(pindex);
    const CBlockUndo blockUndo = GetUndoChecked(pindex);
    const bool do_all = stats.size() == 0; 
    const bool do_mediantxsize = do_all || stats.count("mediantxsize") != 0;
    const bool do_medianfee = do_all || stats.count("medianfee") != 0;
    const bool do_feerate_percentiles = do_all || stats.count("feerate_percentiles") != 0;
    const bool loop_inputs = do_all || do_medianfee || do_feerate_percentiles ||
        SetHasKeys(stats, "utxo_size_inc", "totalfee", "avgfee", "avgfeerate", "minfee", "maxfee", "minfeerate", "maxfeerate");
    const bool loop_outputs = do_all || loop_inputs || stats.count("total_out");
    const bool do_calculate_size = do_mediantxsize ||
        SetHasKeys(stats, "total_size", "avgtxsize", "mintxsize", "maxtxsize", "swtotal_size");
    const bool do_calculate_weight = do_all || SetHasKeys(stats, "total_weight", "avgfeerate", "swtotal_weight", "avgfeerate", "feerate_percentiles", "minfeerate", "maxfeerate");
    const bool do_calculate_sw = do_all || SetHasKeys(stats, "swtxs", "swtotal_size", "swtotal_weight");
    CAmount maxfee = 0;
    CAmount maxfeerate = 0;
    CAmount minfee = MAX_MONEY;
    CAmount minfeerate = MAX_MONEY;
    CAmount total_out = 0;
    CAmount totalfee = 0;
    int64_t inputs = 0;
    int64_t maxtxsize = 0;
    int64_t mintxsize = MAX_BLOCK_SERIALIZED_SIZE;
    int64_t outputs = 0;
    int64_t swtotal_size = 0;