feat: support axios in browser can handle event stream request

[geekeren]

axios in browser use XHR to send the request, not support handling the event stream response.
to solve this issue: axios/axios#479

[geekeren]

Usage:

const httpClient = axios.create({
 adapter: fetchAdapter
});

const response = awat httpClient.post('/api/event-stream');
const responseStream = response.data as Response['body'];
const reader = responseStream!.getReader();
 const readChunk = () => {
            // Read a chunk from the reader
            reader.read()
                .then(({
                    value,
                    done
                }) => {
                    // Check if the stream is done
                    if (done) {
                        // Log a message
                        console.log('Stream finished');
                        // Return from the function
                        return;
                    }
                    // Convert the chunk value to a string
                    const chunkString = new TextDecoder().decode(value);
                    // Log the chunk string
                    console.log(chunkString);
                    // Read the next chunk
                    readChunk();
                })
                .catch(error => {
                    // Log the error
                    console.error(error);
                });
        };
        // Start reading the first chunk
        readChunk();

[geekeren]

@vespaiach bro, is this package still in maintenance? could you merge this request