update ssh config for git.geekback.dev

configs/ssh/config

@@ -25,5 +25,6 @@ Host api.okteto
 Host git.geekback.dev
   Port 2222
   IdentitiesOnly yes
-  IdentityFile ~/.ssh/id_rsa
-  PubkeyAcceptedKeyTypes +ssh-rsa
+  IdentityFile ~/.ssh/id_ed25519.pub
+# to generate new key
+# ssh-keygen -t ed25519 -C "tmerritt@yourcoolhost.xyz"