chore(release): remove key content diagnostics from AUR SSH setup

.gitea/workflows/release.yml

@@ -118,9 +118,7 @@ jobs:
           chmod 600 ~/.ssh/aur
 
           # Diagnostics (no key content exposed)
-          echo "Key file size: $(wc -c < ~/.ssh/aur) bytes"
-          echo "Key file first line: $(head -1 ~/.ssh/aur)"
-          echo "Key file last line: $(tail -1 ~/.ssh/aur)"
+   
           ssh-keygen -l -f ~/.ssh/aur && echo "Key is valid" || echo "Key is INVALID"
           ssh-keyscan aur.archlinux.org >> ~/.ssh/known_hosts