fix: stop duplicated scope in Dependabot commit messages (#7)

`commit-message.include: scope` already appends the (deps)/(deps-dev)
scope, so carrying it in `prefix` too produced chore(deps)(deps): ...
Set prefix to "chore" and drop the redundant prefix-development; the
runtime/dev distinction now comes from include: scope.

Signed-off-by: Thomas Müller <1005065+DeepDiver1975@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: DeepDiver1975

.github/dependabot.yml

@@ -13,9 +13,11 @@ updates:
       interval: "weekly"
       day: "monday"
     open-pull-requests-limit: 5
+    # `include: scope` makes Dependabot append the scope itself -> chore(deps):
+    # for runtime deps and chore(deps-dev): for dev deps. The scope must NOT be
+    # baked into `prefix`, or it doubles (chore(deps)(deps): ...).
     commit-message:
-      prefix: "chore(deps)"
-      prefix-development: "chore(deps-dev)"
+      prefix: "chore"
       include: "scope"
     groups:
       npm-minor-patch:
@@ -29,7 +31,7 @@ updates:
       interval: "weekly"
       day: "monday"
     commit-message:
-      prefix: "chore(deps)"
+      prefix: "chore"
       include: "scope"
     groups:
       actions-minor-patch: