[test] Extend testing on Mac on arm64

Ensure more testing of --future for different test types on Mac.

No-Try: true
Bug: v8:11527
Change-Id: Iac499dc48dde3342ad2057f86ef1ad5fa43b4eac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2772981Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73514}

infra/testing/builders.pyl

@@ -758,6 +758,7 @@
     },
     'tests': [
       {'name': 'v8testing', 'shards': 8},
+      {'name': 'v8testing', 'variant': 'future', 'shards': 2},
     ],
   },
   'v8_mac_arm64_sim_dbg_ng_triggered': {
@@ -768,6 +769,7 @@
     },
     'tests': [
       {'name': 'v8testing', 'shards': 8},
+      {'name': 'v8testing', 'variant': 'future', 'shards': 2},
     ],
   },
   'v8_mac_arm64_sim_nodcheck_rel_ng_triggered': {
@@ -778,6 +780,7 @@
     },
     'tests': [
       {'name': 'v8testing', 'shards': 8},
+      {'name': 'v8testing', 'variant': 'future', 'shards': 2},
     ],
   },
   ##############################################################################
@@ -1421,8 +1424,8 @@
       'priority': 35,
     },
     'tests': [
-      {'name': 'd8testing'},
-      {'name': 'd8testing', 'variant': 'extra'},
+      {'name': 'v8testing'},
+      {'name': 'v8testing', 'variant': 'extra'},
     ],
   },
   'V8 Mac - arm64 - sim - debug': {
@@ -1438,6 +1441,7 @@
     },
     'tests': [
       {'name': 'v8testing', 'shards': 8},
+      {'name': 'v8testing', 'variant': 'future', 'shards': 2},
     ],
   },
   'V8 Mac - arm64 - sim - release': {
@@ -1453,6 +1457,7 @@
     },
     'tests': [
       {'name': 'v8testing', 'shards': 8},
+      {'name': 'v8testing', 'variant': 'future', 'shards': 2},
     ],
   },
   'V8 Win32': {