Upgrade v8

[karlseguin]

Depends on lightpanda-io/zig-v8-fork#93

[krichprollsch]

Something is wrong we you already have a v8 dir:

$ make get-v8
Getting v8 source...

v8/src/ already exists, only cloning dependencies

dependency src/build already exists, skipping

dependency src/third_party/jinja2 already exists, skipping

dependency src/buildtools already exists, skipping

dependency src/tools/clang already exists, skipping

dependency src/third_party/zlib already exists, skipping

dependency src/third_party/googletest/src already exists, skipping

dependency src/third_party/markupsafe already exists, skipping

dependency src/third_party/icu already exists, skipping

dependency src/third_party/abseil-cpp already exists, skipping

dependency src/third_party/simdutf already exists, skipping

dependency src/third_party/highway/src/ already exists, skipping

dependency src/third_party/libc++/src already exists, skipping

dependency src/third_party/libc++abi/src already exists, skipping

dependency src/third_party/llvm-libc/src already exists, skipping

dependency src/third_party/fp16/src already exists, skipping

dependency src/third_party/fast_float/src already exists, skipping
Traceback (most recent call last):
  File "/home/pierre/wrk/browser-review/v8/deps_get.py", line 16, in <module>
    main()
  File "/home/pierre/wrk/browser-review/v8/deps_get.py", line 9, in main
    entry = lookup[sys.argv[2]];
            ~~~~~~^^^^^^^^^^^^^
KeyError: 'third_party/dragonbox/src'
get-v8
└─ run exe get-v8
   └─ compile exe get-v8 Debug native
      └─ run /bin/bash failure
error: the following command exited with error code 1:
cd v8 && /bin/bash get_v8.sh

Build Summary: 3/7 steps succeeded; 1 failed
get-v8 transitive failure
└─ run exe get-v8 transitive failure
   └─ compile exe get-v8 Debug native transitive failure
      └─ run /bin/bash failure

error: the following build command failed with exit code 1:
.zig-cache/o/44e287c6e8f30cf5a7a48d6b7ac1e4bb/build /usr/local/zig-0.15.1/zig /usr/local/zig-0.15.1/lib /home/pierre/wrk/browser-review .zig-cache /home/pierre/.cache/zig --seed 0x9926972f -Z33906a4a82e701a2 get-v8
make: *** [Makefile:111: get-v8] Error 1

[krichprollsch]

Tested with the last version of lightpanda-io/zig-v8-fork#93
It works for me 👍