Exclude conversation selectors from export and restore (#4890)

<!-- PR description-->

Group export sanity test is failing because we added conversations to `sel.AllData()`. But we don't have export support for conversations yet.

Adding conv selector to exclude so that it doesn't fail exports for groups libraries and channels. This is a short term change, and will be removed once we have export support https://github.com/alcionai/corso/issues/4822

---

#### 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

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

src/cli/export/groups.go

@@ -8,6 +8,7 @@ import (
 	"github.com/alcionai/corso/src/cli/flags"
 	"github.com/alcionai/corso/src/cli/utils"
 	"github.com/alcionai/corso/src/pkg/control"
+	"github.com/alcionai/corso/src/pkg/selectors"
 )
 
 // called by export.go to map subcommands to provider-specific handling.
@@ -100,6 +101,10 @@ func exportGroupsCmd(cmd *cobra.Command, args []string) error {
 	sel := utils.IncludeGroupsRestoreDataSelectors(ctx, opts)
 	utils.FilterGroupsRestoreInfoSelectors(sel, opts)
 
+	// TODO(pandeyabs): Exclude conversations from export since they are not
+	// supported yet. https://github.com/alcionai/corso/issues/4822
+	sel.Exclude(sel.Conversation(selectors.Any()))
+
 	acceptedGroupsFormatTypes := []string{
 		string(control.DefaultFormat),
 		string(control.JSONFormat),

src/cli/restore/groups.go

@@ -7,6 +7,7 @@ import (
 	"github.com/alcionai/corso/src/cli/flags"
 	"github.com/alcionai/corso/src/cli/utils"
 	"github.com/alcionai/corso/src/pkg/dttm"
+	"github.com/alcionai/corso/src/pkg/selectors"
 )
 
 // called by restore.go to map subcommands to provider-specific handling.
@@ -91,6 +92,10 @@ func restoreGroupsCmd(cmd *cobra.Command, args []string) error {
 	sel := utils.IncludeGroupsRestoreDataSelectors(ctx, opts)
 	utils.FilterGroupsRestoreInfoSelectors(sel, opts)
 
+	// TODO(pandeyabs): Exclude conversations from restores since they are not
+	// supported yet.
+	sel.Exclude(sel.Conversation(selectors.Any()))
+
 	return runRestore(
 		ctx,
 		cmd,