disable web tests (#35792)

diff --git a/.cirrus.yml b/.cirrus.yml
index edf9f5e..69d6f3a 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -132,16 +132,16 @@
       container:
         cpu: 8
         memory: 24G
-    - name: web_tests-linux
-      # TODO(jonahwilliams): re-enabled once we've determined causes for flakiness
-      allow_failures: true
-      env:
-        SHARD: web_tests
-      test_script:
-        - dart --enable-asserts ./dev/bots/test.dart
-      container:
-        cpu: 4
-        memory: 12G
+    # TODO(jonahwilliams): re-enabled once we've determined causes for flakiness
+    # - name: web_tests-linux
+    #   allow_failures: true
+    #   env:
+    #     SHARD: web_tests
+    #   test_script:
+    #     - dart --enable-asserts ./dev/bots/test.dart
+    #   container:
+    #     cpu: 4
+    #     memory: 12G
     - name: build_tests-linux
       env:
         SHARD: build_tests