Remove ember-cli-meta-tags, it was unused. Added ember-cli-head since

the dependent addon was used.

Author: kategengler

package.json

@@ -64,9 +64,9 @@
     "ember-cli-deploy-gzip": "^3.0.0",
     "ember-cli-deprecation-workflow": "^3.0.1",
     "ember-cli-fastboot": "^4.1.5",
+    "ember-cli-head": "^2.0.0",
     "ember-cli-htmlbars": "^6.3.0",
     "ember-cli-inject-live-reload": "^2.1.0",
-    "ember-cli-meta-tags": "^7.0.0",
     "ember-cli-showdown": "^9.0.1",
     "ember-cli-terser": "^4.0.2",
     "ember-composable-helpers": "^5.0.0",