timeout 15m for all GHA jobs

.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/bibcop.yml

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

.github/workflows/cff-validator.yml

@@ -30,6 +30,7 @@ name: cff-validator
       - CITATION.cff
 jobs:
   cff-validator:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/checkmake.yml

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

.github/workflows/copyrights.yml

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

.github/workflows/flake8.yml

@@ -30,6 +30,7 @@ name: flake8
       - master
 jobs:
   flake8:
+    timeout-minutes: 15
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4

.github/workflows/hadolint.yml

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

.github/workflows/make.yml

@@ -30,6 +30,7 @@ name: make
       - master
 jobs:
   make:
+    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/pdd.yml

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

.github/workflows/shellcheck.yml

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

.github/workflows/up.yml

@@ -32,6 +32,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   up:
+    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