[bazel] Adds v8_enable_shared_ro_heap to v8_build_config

Context:
https://chromium-review.googlesource.com/c/v8/v8/+/3421507

No-Try: true
Bug: v8:12007
Change-Id: I570cd80dbf84270298f48d9732010514bbb2d204
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422631
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78829}

bazel/defs.bzl

@@ -501,6 +501,7 @@ def build_config_content(cpu, icu):
         ("v8_control_flow_integrity", "false"),
         ("v8_enable_single_generation", "false"),
         ("v8_enable_sandbox", "false"),
+        ("v8_enable_shared_ro_heap", "false"),
         ("v8_target_cpu", cpu),
     ])