Update Chromium support for async clipboard (#7106)

According to https://chromestatus.com/feature/5861289330999296 this feature shipped in M66.

It was behind a flag before that, but confirming the correct versions doesn't seem worth the effort.

Also update Opera to the corresponding Opera version.

features-json/async-clipboard.json

@@ -282,14 +282,14 @@
       "55":"n",
       "56":"n",
       "57":"n",
-      "58":"n d",
-      "59":"n d",
-      "60":"n d",
-      "61":"n d",
-      "62":"y",
-      "63":"y",
-      "64":"y",
-      "65":"y",
+      "58":"n",
+      "59":"n",
+      "60":"n",
+      "61":"n",
+      "62":"n",
+      "63":"n",
+      "64":"n",
+      "65":"n",
       "66":"y",
       "67":"y",
       "68":"y",
@@ -446,10 +446,10 @@
       "46":"n",
       "47":"n",
       "48":"n",
-      "49":"y",
-      "50":"y",
-      "51":"y",
-      "52":"y",
+      "49":"n",
+      "50":"n",
+      "51":"n",
+      "52":"n",
       "53":"y",
       "54":"y",
       "55":"y",