Update Canary and EL8 titles

Signed-off-by: apostasie <[email protected]>

Author: apostasie

.github/workflows/test-canary.yml

@@ -1,5 +1,5 @@
 # This pipeline purpose is solely meant to run a subset of our test suites against upcoming or unreleased dependencies versions
-name: canary
+name: "[flaky, see #3988] canary"
 
 on:
   push:

.github/workflows/test.yml

@@ -423,7 +423,7 @@ jobs:
   # Do not upgrade this to EL9 (cgroup v2).
   test-integration-el8:
     timeout-minutes: 60
-    name: "EL8 (cgroup v1)"
+    name: "[flaky, see #3988] EL8 (cgroup v1)"
     strategy:
       fail-fast: false
       matrix: