Glyph bbox was incorrect
I am encountering a console warning in Mozilla when using the boxicons. The warning states that the glyph bounding box is incorrect for a large number of glyph ids.

```
downloadable font: Glyph bbox was incorrect (glyph ids 7 9 11 13 15 20 22 23 24 26 27 28 30 33 39 43 47 55 60 61 62 63 72 76 79 84 89 95 98 103 107 108 111 121 122 127 132 137 140 144 146 149 151 158 194 198 206 208 212 227 265 319 434 446 451 456 479 493 496 509 524 526 569 571 588 602 651 662 664 673 683 692 704 721 748 750 751 777 779 814 837 864 869 899 907 919 920 924 927 956 971 1078 1101 1110 1156 1157 1178 1185 1190 1227 1239 1254 1259 1260 1261 1262 1292 1293 1295 1307 1353 1361 1362 1368 1378 1380 1384 1401 1412 1413 1414 1418 1431 1432 1433 1443 1446 1448 1461 1468 1476 1478 1503 1508 1542 1548 1553 1563 1567 1601 1602 1622 1623 1633) (font-family: "boxicons" style:normal weight:400 stretch:100 src index:1) source: https://unpkg.com/boxicons@2.1.4/fonts/boxicons.woff2 
```

###  Steps to Reproduce
1. Include the "boxicons" font from the specified URL in a web project.
    `<link
      href="https://unpkg.com/boxicons@2.1.4/css/boxicons.min.css"
      rel="stylesheet"
    />`
2. Open the project in Mozilla Firefox.
3. Inspect the console for warnings.
    ![image](https://github.com/atisawd/boxicons/assets/77572066/78eeec3f-9322-450a-b2af-ed2f5c5cef84)


### Expected Behavior
The icons should load without any warnings in the console regarding incorrect glyph bounding boxes.

### Actual Behavior
The console displays a warning indicating that the glyph bounding box is incorrect for various glyph ids.


### Environment
- Browser: Mozilla Firefox 120.0.1 (64-bit)
- Font URL: [https://unpkg.com/boxicons@2.1.4/fonts/boxicons.woff2](https://unpkg.com/boxicons@2.1.4/fonts/boxicons.woff2)


This issue might relate to the font file itself or how it's being interpreted by Mozilla. Any insights or solutions would be greatly appreciated.
