Fix json tag for modified time in sharepoint info (#3353)

Small typo fix for metadata store.

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- [x] ⛔ No

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- [ ] 🐛 Bugfix
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- [ ] 🤖 Supportability/Tests
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src/pkg/backup/details/details.go

@@ -866,7 +866,7 @@ type SharePointInfo struct {
 	DriveID    string    `json:"driveID,omitempty"`
 	ItemName   string    `json:"itemName,omitempty"`
 	ItemType   ItemType  `json:"itemType,omitempty"`
-	Modified   time.Time `josn:"modified,omitempty"`
+	Modified   time.Time `json:"modified,omitempty"`
 	Owner      string    `json:"owner,omitempty"`
 	ParentPath string    `json:"parentPath,omitempty"`
 	Size       int64     `json:"size,omitempty"`