docs: update out-of-date copyright notices

Signed-off-by: Universal Studio <[email protected]>

.goreleaser.yaml

@@ -173,7 +173,7 @@ winget:
       <<: *commit_author
     homepage: *homepage
     license_url: https://github.com/TMUniversal/papercrypt/blob/{{.Tag}}/COPYING
-    copyright: Copyright © 2023  TMUniversal <[email protected]>
+    copyright: Copyright © 2023-2024  TMUniversal <[email protected]>
     copyright_url: https://github.com/TMUniversal/papercrypt/blob/{{.Tag}}/COPYING
     skip_upload: auto
     release_notes_url: https://github.com/TMUniversal/papercrypt/blob/{{.Tag}}/CHANGELOG.md

cmd/root.go

@@ -56,7 +56,7 @@ and then prepare a printable document that is optimized for being able to restor
 		log.Info("thank you for using papercrypt!")
 	},
 	RunE: func(cmd *cobra.Command, _ []string) error {
-		cmd.Println("PaperCrypt  Copyright (C) 2023  TMUniversal <[email protected]>")
+		cmd.Println("PaperCrypt  Copyright (C) 2023-2024  TMUniversal <[email protected]>")
 		cmd.Println("This program comes with ABSOLUTELY NO WARRANTY; for details type `papercrypt show w'.")
 		cmd.Println("This is free software, and you are welcome to redistribute it")
 		cmd.Println("under certain conditions; type `papercrypt show c' for details.")