Update Basecamp (#3277)

_data/simple-icons.json

@@ -737,7 +737,7 @@
         },
         {
             "title": "Basecamp",
-            "hex": "5ECC62",
+            "hex": "1D2D35",
             "source": "https://basecamp.com/about/press"
         },
         {

icons/basecamp.svg

@@ -1 +1 @@
-<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Basecamp icon</title><path d="M12 2C5.54 2 .48 10.22 0 17.16 2.028 20.68 6.915 22 12 22s9.975-1.32 12-4.84C23.52 10.218 18.46 2 12 2zm.15 18.4c-9.54 0-10.456-4.034-10.456-4.034l.18-.976S4.5 9.72 6.15 9.72s2.34 2.34 3.69 2.34 4.274-5.19 5.324-5.19c1.047 0 2.82 1.95 4.27 3.75 1.45 1.802 2.878 4.887 2.878 4.887l-.008.034.15.886S21.688 20.4 12.148 20.4z"/></svg>
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Basecamp icon</title><path d="M12.6516 22.453c-4.0328 0-7.575-1.5542-10.244-4.4946a1.11 1.11 0 0 1-.219-1.1338c.7008-1.8884 2.5935-6.2808 5.0205-6.2948h.0125c1.219 0 2.1312.9655 2.8648 1.7412.2192.2324.555.5875.7818.7611.5656-.5587 1.6775-2.4158 2.5422-4.2779.259-.5567.9203-.7985 1.4765-.5402.557.2584.7988.919.5404 1.4762-2.6217 5.6503-4.019 5.6503-4.478 5.6503-1.022 0-1.7628-.7843-2.4791-1.5422-.3208-.339-.9878-1.045-1.2482-1.045h-.0004c-.5665.095-1.8085 2.0531-2.6966 4.2034 2.1925 2.1722 4.9232 3.2726 8.1266 3.2726 4.3955 0 7.683-1.1964 9.0996-3.2953-.4888-5.585-3.5642-13.1634-9.0996-13.1634-4.6855 0-8.2152 3.264-10.4915 9.7007-.205.579-.8416.8828-1.4187.6776-.5789-.2047-.882-.8398-.6776-1.4185 2.624-7.421 6.859-11.1833 12.5878-11.1833 7.4826 0 10.9304 9.5613 11.3458 15.588a1.1154 1.1154 0 0 1-.1456.6314c-1.7407 3.0221-5.7182 4.6864-11.2002 4.6864Z"/></svg>