feat(pack): add Duper's Auto Walk

Client-side NeoForge 1.21.1 mod that walks the player forward on a
toggleable keybind. Modrinth reports server_side as unsupported, so
packwiz writes side = "client" and the jar stays off the server.

mods/autowalker.pw.toml

@@ -0,0 +1,13 @@
+name = "Duper's Auto Walk"
+filename = "DuperAutoWalk-0.1.5+1.21.1-neoforge.jar"
+side = "client"
+
+[download]
+url = "https://cdn.modrinth.com/data/TdmWJlQa/versions/fkOhSzSt/DuperAutoWalk-0.1.5%2B1.21.1-neoforge.jar"
+hash-format = "sha512"
+hash = "f3b9c782a2884a4430d2e679a14fc19a5e400b0e4a90db7acc92eb95bef642c8cf64fa09ca3f6b1b0dae72be558fc564e642fb58fd2054c7750a051ddd276a41"
+
+[update]
+[update.modrinth]
+mod-id = "TdmWJlQa"
+version = "fkOhSzSt"