Revert "Just delete *all* the config snapshots"

This reverts commit 190e83b7db.

config/sync/config_snapshot.snapshot.config_sync.module.geo_upgrade.yml

@@ -0,0 +1,27 @@
+uuid: 371cab72-414d-48bb-8bd9-2fd973d6860b
+langcode: en
+status: true
+dependencies:
+  module:
+    - geo_upgrade
+id: config_sync.module.geo_upgrade
+snapshotSet: config_sync
+extensionType: module
+extensionName: geo_upgrade
+items:
+  -
+    collection: ''
+    name: migrate_plus.migration_group.migrate_drupal_7_geo
+    data:
+      langcode: en
+      id: migrate_drupal_7_geo
+      label: 'Import from Drupal 7'
+      description: 'Migrate from the D7 version of the site'
+      source_type: 'Drupal 7'
+      shared_configuration:
+        source:
+          key: drupal7
+      dependencies:
+        enforced:
+          module:
+            - geo_upgrade