[CI] Avoid dup htmltest config for blog pages (#5518)

Author: chalin

.htmltest.yml

@@ -8,6 +8,8 @@ CheckMailto: false
 TestFilesConcurrently: true
 IgnoreDirs:
   # DO NOT EDIT! IgnoreDirs list is auto-generated from markdown file front matter.
+  # 2024-11-03 The following entry is for `en` pages only. Other locales do
+  # not currently require it.
   - ^blog/(\d+/)?page/\d+
   # TODO drop next line after https://github.com/open-telemetry/opentelemetry.io/issues/5423 is fixed for ja pages:
   - ^ja/docs/concepts/instrumentation/libraries/

content/en/blog/_index.md

@@ -5,5 +5,7 @@ redirects: [{ from: '', to: '2024/ 301!' }]
 outputs: [HTML, RSS]
 htmltest:
   IgnoreDirs:
+    # 2024-11-03 The following entry is for `en` pages only. Other locales do
+    # not currently require it.
     - ^blog/(\d+/)?page/\d+
 ---

content/zh/blog/_index.md

@@ -3,8 +3,5 @@ title: 博客
 menu: { main: { weight: 50 } }
 redirects: [{ from: '', to: '2024/ 301!' }]
 outputs: [HTML, RSS]
-htmltest:
-  IgnoreDirs:
-    - ^blog/(\d+/)?page/\d+
 default_lang_commit: 4c5468f8d16434f25f335e1b45922ca0f4cec18f
 ---