[watchlist] Add cbruni@ to api watchlist

- Remove unused ia32 watchlist group
- Add api watchlist group

Change-Id: Ia64d2368de54a846ce548a66eef7e96ee5579a3a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3084365
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76189}

WATCHLISTS

@@ -33,6 +33,9 @@
 
 {
   'WATCHLIST_DEFINITIONS': {
+    'api': {
+      'filepath': 'include/'
+    }
     'snapshot': {
       'filepath': 'src/snapshot/',
     },
@@ -67,9 +70,6 @@
       'filepath': 'src/codegen/code-stub-assembler\.(cc|h)$' \
                   '|src/builtins/.*-gen.(cc|h)$',
     },
-    'ia32': {
-      'filepath': '/ia32/',
-    },
     'merges': {
       'filepath': '.',
     },
@@ -153,6 +153,7 @@
       'alph+watch@chromium.org',
       'lpy+v8tracing@chromium.org',
       'fmeawad@chromium.org',
+      'cbruni+watch@chromium.org'
     ],
     'ieee754': [
       'rtoy+watch@chromium.org',
@@ -162,8 +163,11 @@
       'jgruber+watch@chromium.org',
       'pthier+watch@chromium.org'
     ],
-    'bazel' : [
+    'bazel': [
       'victorgomes+watch@chromium.org'
     ],
+    'api': [
+      'cbruni+watch@chromium.org'
+    ],
   },
 }