dependabot: Ignore etcetera

Also, whoops, it's edition 2024 not edition 2025.

Author: the-mikedavis

.github/dependabot.yml

@@ -13,11 +13,13 @@ updates:
           - "minor"
           - "patch"
     ignore:
-      # MSRV: these deps use edition 2025 in their newest versions.
+      # MSRV: these deps use edition 2024 in their newest versions.
       # Once the MSRV reaches 1.85 these can be updated and unignored.
       - dependency-name: ignore
       - dependency-name: globset
       - dependency-name: grep-matcher
+      # Now requires Rust 1.87:
+      - dependency-name: etcetera
 
   - package-ecosystem: "github-actions"
     directory: "/"