Add Boosty icon (#8897)

Co-authored-by: Adam Rusted <hello@adamrusted.me>
Co-authored-by: Peter Noble <15157491+PeterShaggyNoble@users.noreply.github.com>

_data/simple-icons.json

@@ -2062,6 +2062,12 @@
             "hex": "F7901E",
             "source": "https://www.boostmobile.com"
         },
+        {
+            "title": "Boosty",
+            "hex": "F15F2C",
+            "source": "https://boosty.to/app/brand",
+            "guidelines": "https://boosty.to/app/brand"
+        },
         {
             "title": "Boots",
             "hex": "05054B",

icons/boosty.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Boosty</title><path d="M2.661 14.337 6.801 0h6.362L11.88 4.444l-.038.077-3.378 11.733h3.15c-1.321 3.289-2.35 5.867-3.086 7.733-5.816-.063-7.442-4.228-6.02-9.155M8.554 24l7.67-11.035h-3.25l2.83-7.073c4.852.508 7.137 4.33 5.791 8.952C20.16 19.81 14.344 24 8.68 24h-.127z"/></svg>