[ci] Add issue tracker anti-spam protection (yt-dlp#10861)

Authored by: bashonly

.github/ISSUE_TEMPLATE/1_broken_site.yml

@@ -77,3 +77,8 @@ body:
       render: shell
     validations:
       required: true
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/ISSUE_TEMPLATE/2_site_support_request.yml

@@ -89,3 +89,8 @@ body:
       render: shell
     validations:
       required: true
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/ISSUE_TEMPLATE/3_site_feature_request.yml

@@ -85,3 +85,8 @@ body:
       render: shell
     validations:
       required: true
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/ISSUE_TEMPLATE/4_bug_report.yml

@@ -70,3 +70,8 @@ body:
       render: shell
     validations:
       required: true
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/ISSUE_TEMPLATE/5_feature_request.yml

@@ -64,3 +64,8 @@ body:
         [youtube] Extracting URL: https://www.youtube.com/watch?v=BaW_jenozKc
         <more lines>
       render: shell
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/ISSUE_TEMPLATE/6_question.yml

@@ -70,3 +70,8 @@ body:
         [youtube] Extracting URL: https://www.youtube.com/watch?v=BaW_jenozKc
         <more lines>
       render: shell
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!

.github/workflows/antispam.yaml

@@ -0,0 +1,20 @@
+name: Anti-Spam
+on:
+  issues:
+    types: [opened]
+
+permissions:
+  issues: write
+
+jobs:
+  lockdown:
+    name: Issue Lockdown
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Lock new issue"
+        env:
+          GH_TOKEN: ${{ github.token }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          REPOSITORY: ${{ github.repository }}
+        run: |
+          gh issue lock "${ISSUE_NUMBER}" -r too_heated -R "${REPOSITORY}"

devscripts/make_issue_template.py

@@ -46,6 +46,11 @@
       render: shell
     validations:
       required: true
+  - type: markdown
+    attributes:
+      value: |
+        ### NOTE: Due to a recent increase in malicious spam activity, this issue will be automatically locked until it is triaged by a maintainer.
+        ### If you receive any replies asking you download a file, do NOT follow the download links!
 '''.strip()
 
 NO_SKIP = '''