chore: bump chromium to 121.0.6100.0 (main) (#40408)

* chore: bump chromium in DEPS to 121.0.6100.0

* chore: update patches

* 4970322: [X11] Move utils into x11::Connection

4970322

---------

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>

patches/v8/build_gn.patch

@@ -9,7 +9,7 @@ necessary for native modules to load.
 Also change visibility on mksnapshot in order to target mksnapshot for mksnapshot zip.
 
 diff --git a/BUILD.gn b/BUILD.gn
-index 01159bc491a4a97bc0d8dd280f5871e9dc8d3dcd..4d0dd3c174bd8dff18f98506c062b595e88a0420 100644
+index 52c9696e6afe89b584487d4a05e1b3680e856862..c7005f6774ea271ba27ea96bb3fe96010b36eeb2 100644
 --- a/BUILD.gn
 +++ b/BUILD.gn
 @@ -752,7 +752,7 @@ config("internal_config") {

patches/v8/do_not_export_private_v8_symbols_on_windows.patch

@@ -12,7 +12,7 @@ This patch can be safely removed if, when it is removed, `node.lib` does not
 contain any standard C++ library exports (e.g. `std::ostringstream`).
 
 diff --git a/BUILD.gn b/BUILD.gn
-index 4d0dd3c174bd8dff18f98506c062b595e88a0420..91856bfe8ef7f5107e9fe94a075f137db2c8ae37 100644
+index c7005f6774ea271ba27ea96bb3fe96010b36eeb2..f0a0020e146cecbbae141a024695e945be362533 100644
 --- a/BUILD.gn
 +++ b/BUILD.gn
 @@ -752,6 +752,10 @@ config("internal_config") {