Add Der Spiegel (#3168)

Co-authored-by: Lucas Becker <runxel@users.noreply.github.com>

_data/simple-icons.json

@@ -1525,6 +1525,11 @@
             "hex": "025E8C",
             "source": "https://dependabot.com/dependabot-logo-symbol-square-mono.svg"
         },
+        {
+            "title": "Der Spiegel",
+            "hex": "E64415",
+            "source": "https://www.spiegel.de/"
+        },
         {
             "title": "Designer News",
             "hex": "2D72D9",

icons/derspiegel.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Der Spiegel icon</title><path d="M.868 13.054v-2.108h.677v2.108zm1.29.19v-2.488a.346.346 0 0 0-.338-.337H0v.527h.254v2.108H0v.527h1.841a.33.33 0 0 0 .318-.337zm1.905-.78v.59h-.72v-.864h.953v-.527h-.952v-.717h.72v.442h.592v-.97H2.497v.528h.233v2.108h-.233v.527h2.16v-1.117zm1.778-.801v-.717h.699v.717zm1.334 1.391v-.759a.334.334 0 0 0-.339-.337c.19 0 .339-.148.339-.338v-.843c0-.169-.149-.337-.318-.337H4.974v.527h.275v2.108h-.275v.506h1.121v-.527h-.233v-.864h.699v.864h-.254v.527h1.1v-.527zm4.507-1.391v-.717h.72v.717zm1.334.19v-1.097a.334.334 0 0 0-.339-.337h-1.862v.527h.254v2.108h-.254v.527h1.1v-.527h-.233v-.864h.995c.19 0 .339-.148.339-.338zm1.08 1.201v-2.108h.253v-.527h-1.1v.527h.254v2.108h-.254v.527h1.1v-.527zm2.094-.59v.59h-.72v-.864h.953v-.527h-.952v-.717h.72v.442h.613v-.97h-2.18v.528h.233v2.108h-.233v.527h2.18v-1.117zm1.736-.801v.527h.487v.864h-.72v-2.108h.72v.442h.634v-.632a.334.334 0 0 0-.338-.337h-1.27a.325.325 0 0 0-.212.084c-.063.063-.127.148-.127.253v2.488a.3.3 0 0 0 .127.253.32.32 0 0 0 .233.084h1.587v-1.918zm2.984.8v.591h-.72v-.864h.953v-.527h-.953v-.717h.72v.442h.614v-.97h-2.18v.528h.233v2.108h-.233v.527h2.18v-1.117zm2.476 0v.591h-.698v-2.108h.254v-.527H21.82v.527h.254v2.108h-.254v.527H24v-1.117zm-12.846.8v-1.592H9.227v-.722h.699v.446h.635v-.637c0-.204-.19-.34-.381-.34H8.931a.335.335 0 0 0-.338.34v1.444h1.312v.87h-.699v-.594h-.613v.764c0 .19.148.34.338.34h1.249c.195 0 .36-.128.36-.319Z"/></svg>