🐛 Don't sign tag during autoupdate

This is a temporary restriction since during the implementation of
building the autoupdate functionality and the pipeline handling GPG
additionally would be a bit too much at once.

Refs: #8

update-new-version.sh

@@ -21,10 +21,10 @@ old="${last_tag#?}"
 
 if [ "$1" = "--autoupdate" ]; then
     new="$2"
-    autogit="y"
+    autoupdate="y"
 else
     new="$1"
-    autogit="n"
+    autoupdate="n"
 fi
 
 name="$(git config --get user.name)"
@@ -52,13 +52,16 @@ cd ..
 
 rm "$PACKAGE"_"$old"-*
 
-if [ "$autogit" = "n" ]; then
+if [ "$autoupdate" = "n" ]; then
     exit
 fi
 
+git add -A
+git commit -m "Upstream version $new"
+
 git switch main
 git merge --ff-only version-"$new"
 git push origin main
 
-git tag -s v"$new" "Upstream version $new"
+git tag -a v"$new" "Upstream version $new"
 git push --tags origin main