Extend virtual card expiry flags

autofill-always-return-cloud-tokenized-card is required for testing Cloud tokens.
autofill-enable-virtual-card is required to launch Issued cards.

Change-Id: I6fb3580812ab0b4c6b8ed40a2e9962868f097855
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2510779Reviewed-by: Jared Saul <jsaul@google.com>
Commit-Queue: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/master@{#822833}

chrome/browser/flag-metadata.json

@@ -238,7 +238,7 @@
   {
     "name": "autofill-always-return-cloud-tokenized-card",
     "owners": [ "aneeshali@google.com", "annelim@google.com", "jsaul@google.com" ],
-    "expiry_milestone": 87
+    "expiry_milestone": 94
   },
   {
     "name": "autofill-assistant-chrome-entry",
@@ -293,7 +293,7 @@
   {
     "name": "autofill-enable-virtual-card",
     "owners": [ "siyua", "jsaul@google.com" ],
-    "expiry_milestone": 87
+    "expiry_milestone": 94
   },
   {
     "name": "autofill-enforce-min-required-fields-for-heuristics",