Revert "[macos] Build gn with Xcode 13.3"

This reverts commit 0d6d1310d005cb9bace909cb8352e83113c6fc51.

Reason for revert: bots are running an old version of macOS that can't run Xcode 13.3. They need to be updated first.

Original change's description:
> [macos] Build gn with Xcode 13.3
>
> The bots were configured to build gn with Xcode 12.2 beta 2 which
> has been out for over two years. Bump to a more recent version of
> Xcode (this has no impact on the minimum version of the OS the gn
> binary can run on, this is controlled by `-mmacosx-version-min`
> compiler flag).
>
> Bug: non
> Change-Id: If7db191e83057df280eeee39526d82d61e619d41
> Reviewed-on: https://gn-review.googlesource.com/c/gn/+/13701
> Reviewed-by: Takuto Ikuta <tikuta@google.com>
> Reviewed-by: Petr Hosek <phosek@google.com>
> Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>

TBR=phosek@google.com,tikuta@google.com,sdefresne@chromium.org

Change-Id: I5a44d53ac0b605d5a25e8eaadde3f47123638a06
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: non
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/13721
Reviewed-by: Takuto Ikuta <tikuta@google.com>

infra/recipe_modules/macos_sdk/__init__.py

diff --git a/infra/recipe_modules/macos_sdk/__init__.py b/infra/recipe_modules/macos_sdk/__init__.py
index f105aba..44a4456 100644
--- a/infra/recipe_modules/macos_sdk/__init__.py
+++ b/infra/recipe_modules/macos_sdk/__init__.py
@@ -36,7 +36,7 @@
             ),
             default={
                 'sdk_version':
-                    '13E113',
+                    '12B5025f',
                 'tool_package':
                     'infra/tools/mac_toolchain/${platform}',
                 'tool_version':

infra/recipe_modules/macos_sdk/examples/full.expected/mac.json

diff --git a/infra/recipe_modules/macos_sdk/examples/full.expected/mac.json b/infra/recipe_modules/macos_sdk/examples/full.expected/mac.json
index 610f131..ab278fd 100644
--- a/infra/recipe_modules/macos_sdk/examples/full.expected/mac.json
+++ b/infra/recipe_modules/macos_sdk/examples/full.expected/mac.json
@@ -35,7 +35,7 @@
       "-kind",
       "mac",
       "-xcode-version",
-      "13e113",
+      "12b5025f",
       "-output-dir",
       "[CACHE]/macos_sdk/XCode.app"
     ],

infra/recipes/gn.expected/ci_mac.json

diff --git a/infra/recipes/gn.expected/ci_mac.json b/infra/recipes/gn.expected/ci_mac.json
index 8b30995..26af61d 100644
--- a/infra/recipes/gn.expected/ci_mac.json
+++ b/infra/recipes/gn.expected/ci_mac.json
@@ -197,7 +197,7 @@
       "-kind",
       "mac",
       "-xcode-version",
-      "13e113",
+      "12b5025f",
       "-output-dir",
       "[CACHE]/macos_sdk/XCode.app"
     ],

infra/recipes/gn.expected/cq_mac.json

diff --git a/infra/recipes/gn.expected/cq_mac.json b/infra/recipes/gn.expected/cq_mac.json
index e6f4472..f9d745e 100644
--- a/infra/recipes/gn.expected/cq_mac.json
+++ b/infra/recipes/gn.expected/cq_mac.json
@@ -248,7 +248,7 @@
       "-kind",
       "mac",
       "-xcode-version",
-      "13e113",
+      "12b5025f",
       "-output-dir",
       "[CACHE]/macos_sdk/XCode.app"
     ],