Skip more conv tests (#5302)

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---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

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- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [x] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

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* #<issue>

#### Test Plan

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- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

src/cli/backup/groups_e2e_test.go

@@ -114,6 +114,8 @@ func (suite *BackupGroupsE2ESuite) TestGroupsBackupCmd_channelMessages() {
 }
 
 func (suite *BackupGroupsE2ESuite) TestGroupsBackupCmd_conversations() {
+	// skip
+	suite.T().Skip("CorsoCITeam group mailbox backup is broken")
 	runGroupsBackupCategoryTest(suite, flags.DataConversations)
 }
 
@@ -460,6 +462,8 @@ func (suite *PreparedBackupGroupsE2ESuite) TestGroupsDetailsCmd_channelMessages(
 }
 
 func (suite *PreparedBackupGroupsE2ESuite) TestGroupsDetailsCmd_conversations() {
+	// skip
+	suite.T().Skip("CorsoCITeam group mailbox backup is broken")
 	runGroupsDetailsCmdTest(suite, path.ConversationPostsCategory)
 }