infra: Rename the builders on dev & remove their '-swarming' suffix

Replaced the "-swarming" bit with "-dev". The "-swarming" bit refers to
some legacy bit that's no longer relevant.

Would have removed it entirely instead of replacing it, but the
testing specs don't like having duplicate-named builders across
buckets/projects.

Bug: 1426952
Change-Id: I4a1e71c23e351a292aea997d947882ce8d639147
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4367123
Reviewed-by: Struan Shrimpton <[email protected]>
Commit-Queue: Ben Pastene <[email protected]>
Reviewed-by: Stephanie Kim <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1121412}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index d2bffec..b0825289 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -1454,7 +1454,7 @@
         ],
         'ci_only': True, # https://crbug.com/1233700
       },
-      'android-pie-arm64-rel-swarming': {
+      'android-pie-arm64-rel-dev': {
         'swarming': {
           'service_account': '[email protected]'
         },
@@ -2052,7 +2052,7 @@
         },
       },
       # https://crbug.com/1255940
-      'mac-rel-swarming': {
+      'mac-rel-dev': {
         'swarming': {
           'dimension_sets': [
             {
@@ -3935,7 +3935,7 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.asan.unit_tests.filter',
         ],
       },
-      'android-pie-arm64-rel-swarming': {
+      'android-pie-arm64-rel-dev': {
         'swarming': {
           'shards': 8,
         },