chore: bump actions to Node 24 runtimes

GitHub forces JavaScript actions off the deprecated Node 20
runtime starting 2026-06-16. Bump the affected action pins to
their first Node 24 major.

Author: apermo

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -27,7 +27,7 @@ jobs:
         run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
       - name: Cache Composer dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
@@ -58,10 +58,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '20'
           cache: 'npm'
@@ -78,10 +78,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '20'
           cache: 'npm'

.github/workflows/pr-enforce.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set initial status
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.repos.createCommitStatus({
@@ -30,7 +30,7 @@ jobs:
             });
 
       - name: Wait for validation checks to complete
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const requiredChecks = ['Check Version Bump', 'Check CHANGELOG Entry', 'Validate Training Schedules'];
@@ -82,7 +82,7 @@ jobs:
 
       - name: Check validation results
         id: check-results
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             // Get all check runs for this commit
@@ -142,7 +142,7 @@ jobs:
 
       - name: Update status (success)
         if: steps.check-results.outputs.all_passed == 'true'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.repos.createCommitStatus({
@@ -156,7 +156,7 @@ jobs:
 
       - name: Update status (failure)
         if: steps.check-results.outputs.all_passed != 'true'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const failedChecks = '${{ steps.check-results.outputs.failed_checks }}';

.github/workflows/pr-validation.yml

@@ -17,12 +17,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout PR branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Checkout base branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.base.ref }}
           path: base
@@ -60,7 +60,7 @@ jobs:
     if: needs.validate-version.outputs.result == 'success'
     steps:
       - name: Checkout PR branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 
@@ -89,7 +89,7 @@ jobs:
     if: github.event.action != 'edited'
     steps:
       - name: Checkout PR branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
@@ -167,7 +167,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout PR branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 
@@ -203,7 +203,7 @@ jobs:
     if: always() && github.event.action != 'edited'
     steps:
       - name: Update PR description
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             // Get current PR body
@@ -260,7 +260,7 @@ jobs:
     if: always() && github.event.action != 'edited'
     steps:
       - name: Create summary comment
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const versionResult = '${{ needs.validate-version.outputs.result }}';

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/validate-conventional-commits.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0  # Fetch all history for commit validation
 

CHANGELOG.md

@@ -5,6 +5,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+
+- Bump GitHub Actions off the deprecated Node 20 runtime: `actions/cache`
+  v4→v5, `actions/checkout` v4→v5, `actions/github-script` v7→v8,
+  `actions/setup-node` v4→v5. GitHub forces JavaScript actions onto Node 24
+  starting 2026-06-16.
+
 ## [14.6.8] - 2026-04-29
 
 ### Added