fix: Move monthly_changelog exclusion to lychee.toml exclude_path

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: KATO-Hiro

.github/workflows/link_checker.yml

@@ -2,7 +2,7 @@ name: Check Markdown links with scheduled job
 
 on:
   schedule:
-    - cron: "30 15 * * 2"  # Every Wednesday at 0:30 JST (Tue 15:30 UTC)
+    - cron: "30 15 * * 2" # Every Wednesday at 0:30 JST (Tue 15:30 UTC)
 
 jobs:
   lychee:
@@ -19,5 +19,6 @@ jobs:
 
       - uses: lycheeverse/lychee-action@8646ba30535128ac92d33dfc9133794bfdd9b411 # v2.8.0
         with:
-          args: --cache --max-cache-age 14d --quiet "docs/**/*.md" "monthly_changelog/**/*.md" "README.md" "CONTRIBUTING.md"
+          args: --cache --max-cache-age 14d --quiet "docs/**/*.md" "README.md"
+            "CONTRIBUTING.md"
           fail: true

.github/workflows/link_checker_for_modified_files.yml

@@ -1,6 +1,6 @@
 name: Check Markdown links for modified files
 
-on: [pull_request]
+on: [ pull_request ]
 
 jobs:
   lychee:
@@ -16,7 +16,6 @@ jobs:
         with:
           files: |
             docs/**/*.md
-            monthly_changelog/**/*.md
             README.md
             CONTRIBUTING.md
 
@@ -31,5 +30,6 @@ jobs:
       - uses: lycheeverse/lychee-action@8646ba30535128ac92d33dfc9133794bfdd9b411 # v2.8.0
         if: steps.changed-files.outputs.any_changed == 'true'
         with:
-          args: --cache --max-cache-age 14d --quiet ${{ steps.changed-files.outputs.all_changed_files }}
+          args: --cache --max-cache-age 14d --quiet ${{
+            steps.changed-files.outputs.all_changed_files }}
           fail: true

lychee.toml

@@ -56,6 +56,7 @@ exclude_path = [
   "docs/archived/migrate_servers\\.md",
   "docs/archived/no_longer_available\\.md",
   "docs/archived/outdated_information\\.md",
+  "monthly_changelog/**/*.md",
 ]
 
 # Accept 429 (Rate Limited) in addition to default success codes (100–103, 200–299)