Add Google Tag Manager icon (#1675) (#2195)

* Added googletagmanager.svg, optimised with svgo, annotated

* Updated _data/simple-icons.json

* Updated path

* Update googletagmanager.svg

Closes #1675
Co-authored-by: Lucas Becker <runxel@users.noreply.github.com>
Co-authored-by: Eric Cornelissen <ericornelissen@gmail.com>

_data/simple-icons.json

@@ -1970,6 +1970,11 @@
             "hex": "458CF5",
             "source": "https://search.google.com/search-console"
         },
+        {
+            "title": "Google Tag Manager",
+            "hex": "246FDB",
+            "source": "https://tagmanager.google.com/#/home"
+        },
         {
             "title": "Google Translate",
             "hex": "4285F4",

icons/googletagmanager.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Google Tag Manager icon</title><path d="M11.929,18.136c1.619,0,2.932,1.313,2.932,2.932S13.549,24,11.929,24s-2.932-1.313-2.932-2.932 S10.31,18.136,11.929,18.136z M23.119,9.878l-9-9c-1.171-1.171-3.071-1.171-4.242,0c-1.171,1.171-1.171,3.071,0,4.242l6.866,6.866 l-4.493,4.588l2.119,2.211c0.581,0.621,0.901,1.432,0.901,2.282c0,0.313-0.044,0.615-0.125,0.903l7.974-7.851 C24.291,12.949,24.291,11.05,23.119,9.878z M11.669,7.491L9.588,5.41C8.944,4.766,8.589,3.91,8.589,3c0-0.333,0.048-0.659,0.14-0.97 L0.876,9.809c-1.17,1.17-1.17,3.067,0,4.238l7.824,7.875c-0.072-0.273-0.111-0.559-0.111-0.854c0-1.842,1.499-3.341,3.341-3.341 c0.351,0,0.69,0.055,1.008,0.156l-5.706-5.955L11.669,7.491z"/></svg>