Bump unit_tests and content_unittests to 8 cores on linux-rel-dev

Accidentally moved the 2-core bionic pool on dev to jammy. Rather than
restore it, this just moves the traffic it was using to the
still-existing 8 core pool.

Bug: 1426952
Change-Id: I47726f6c38fbdeb6ec53f0d29ac426afe48f04a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4409392
Bot-Commit: Rubber Stamper <[email protected]>
Commit-Queue: Ben Pastene <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1127769}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index ace24a3..73436912 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -2198,6 +2198,15 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/fuchsia.lsan.content_unittests.filter',
         ],
       },
+      'linux-rel-dev': {
+        'swarming': {
+          'dimension_sets': [
+            {
+              'cores': 8,
+            },
+          ],
+        },
+      },
     },
   },
   'context_lost_validating_tests': {
@@ -3960,6 +3969,15 @@
           'shards': 2,
         },
       },
+      'linux-rel-dev': {
+        'swarming': {
+          'dimension_sets': [
+            {
+              'cores': 8,
+            },
+          ],
+        },
+      },
       'mac-rel-cft': {
         'swarming': {
           'inverse_quickrun_shards': 2,