Fix test_suite_exceptions for *-cr23-rel bots.

The cr23_* minimal test suites are shared between regular builders
(where they are run as an experiment) and the fyi *-cr23-rel
builders, where they should run all the time. I meant to configure
this via the test_suite_exceptions entries. However, I messed
up how you declare the modifications that you need and I messed
up the builder names, so the exceptions were having no effect
and the tests were only running a little bit of the time on the
fyi bots.

This CL fixes the exceptions.

Bug: 1444855
Change-Id: I797c0244c2c60870338e65676518c6a370268a6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4637911
Reviewed-by: Ben Pastene <[email protected]>
Commit-Queue: Dirk Pranke <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1161556}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index dea4413..efe5f02 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -2289,36 +2289,42 @@
     ],
   },
   'cr23_browser_tests': {
-    'cr23-linux-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-mac-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-win-rel': {
-      'experiment_percentage': None,
-    },
+    'modifications': {
+      'linux-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'mac-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'win-cr23-rel': {
+        'experiment_percentage': None,
+      },
+    }
   },
   'cr23_interactive_ui_tests': {
-    'cr23-linux-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-mac-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-win-rel': {
-      'experiment_percentage': None,
+    'modifications': {
+      'linux-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'mac-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'win-cr23-rel': {
+        'experiment_percentage': None,
+      },
     },
   },
   'cr23_views_unittests': {
-    'cr23-linux-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-mac-rel': {
-      'experiment_percentage': None,
-    },
-    'cr23-win-rel': {
-      'experiment_percentage': None,
+    'modifications': {
+      'linux-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'mac-cr23-rel': {
+        'experiment_percentage': None,
+      },
+      'win-cr23-rel': {
+        'experiment_percentage': None,
+      },
     },
   },
   'crashpad_tests': {