timeout 15m for all GHA jobs

Author: yegor256

.github/workflows/actionlint.yml

@@ -30,6 +30,7 @@ name: actionlint
       - master
 jobs:
   actionlint:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/copyrights.yml

@@ -30,6 +30,7 @@ name: copyrights
       - master
 jobs:
   copyrights:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/jekyll.yml

@@ -30,6 +30,7 @@ name: jekyll
       - master
 jobs:
   jekyll:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/markdown-lint.yml

@@ -34,6 +34,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   markdown-lint:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/spellcheck.yml

@@ -26,6 +26,7 @@ name: spellcheck
   pull_request:
 jobs:
   spellcheck:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/yamllint.yml

@@ -30,6 +30,7 @@ name: yamllint
       - master
 jobs:
   yamllint:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4