Update milestones for September (#57222)

Author: wtgodbe

.github/policies/resourceManagement.yml

@@ -674,7 +674,7 @@ configuration:
       then:
       - removeMilestone
       - addMilestone:
-          milestone: 6.0.33
+          milestone: 6.0.34
       description: '[Milestone Assignments] Assign Milestone to PRs merged to release/6.0 branch'
     - if:
       - payloadType: Pull_Request
@@ -685,7 +685,7 @@ configuration:
       then:
       - removeMilestone
       - addMilestone:
-          milestone: 8.0.8
+          milestone: 8.0.9
       description: '[Milestone Assignments] Assign Milestone to PRs merged to release/8.0 branch'
     - if:
       - payloadType: Issues