deps: V8: backport ae7bfb3f03b3

Original commit message:

    Change test expectation per tz2020b

    https://mm.icann.org/pipermail/tz-announce/2020-October/000059.html
         Revised predictions for Morocco's changes starting in 2023.
         Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
         Macquarie Island has stayed in sync with Tasmania since 2011.
         Casey, Antarctica is at +08 in winter and +11 in summer.
         zic no longer supports -y, nor the TYPE field of Rules.

    Bug: chromium:1137864, chromium:1138117
    Change-Id: I6076a993fcd755074ddcfa5321b78aa5f043337b
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2476681
    Commit-Queue: Frank Tang <[email protected]>
    Reviewed-by: Michael Achenbach <[email protected]>
    Cr-Commit-Position: refs/heads/master@{#70553}

Refs: v8/v8@ae7bfb3

PR-URL: #39051
Reviewed-By: Jiawen Geng <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>

common.gypi

@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.75',
+    'v8_embedder_string': '-node.76',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/test/intl/regress-1074578.js

@@ -30,10 +30,12 @@ const df2 = new Intl.DateTimeFormat(
 const d3 = new Date("2020-03-09T00:00Z");
 const d4 = new Date("2021-03-09T00:00Z");
 
-// Before tz202a change will get "March 8, 2020 at 5:00:00 PM PDT"
-assertEquals("March 8, 2020 at 5:00:00 PM MST", df2.format(d3));
+// Before tz2020a change will get "March 8, 2020 at 5:00:00 PM PDT"
+// In tz2020a it should be "March 8, 2020 at 5:00:00 PM MST"
+// but tz2020b roll this back.
+assertEquals("March 8, 2020 at 5:00:00 PM PDT", df2.format(d3));
 
-// Before tz202a change will get "March 8, 2021 at 4:00:00 PM PST"
+// Before tz2020a change will get "March 8, 2021 at 4:00:00 PM PST"
 assertEquals("March 8, 2021 at 5:00:00 PM MST", df2.format(d4));
 
 // C. Test America/Nuuk renamed from America/Godthab.