ci: update GitHub Actions to Node.js 24 compatible versions

Node.js 20 is deprecated on GitHub Actions runners and will be forced
to Node.js 24 starting June 2, 2026, with Node.js 20 removed entirely
on September 16, 2026.

Update all actions to versions that support Node.js 24:
- actions/checkout: v4/master -> v6
- actions/upload-artifact: v4 -> v7
- actions/download-artifact: v4 -> v8
- softprops/action-gh-release: v1 -> v2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/build.yml

@@ -100,7 +100,7 @@ jobs:
         shell: ${{ matrix.shell }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install prerequisites (${{ matrix.target }} @ ${{ matrix.platform }})
         if : ${{ matrix.platform != 'x86_64-w64-mingw32' }}
@@ -160,20 +160,20 @@ jobs:
 
       - name: Save build/build.ninja for failed builds
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: build-ninja-${{ matrix.target }}-${{ matrix.platform }}
           path: build/build.ninja
 
       - name: Dist filelist (dbg) (${{ matrix.target }} @ ${{ matrix.platform }})
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist-filelist-${{ matrix.target }}-${{ matrix.platform }}
           path: |
             dist/dist-filelist-*
 
       - name: Dist artifacts (${{ matrix.target }} @ ${{ matrix.platform }})
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist-qemu-${{ matrix.target }}-${{ matrix.platform }}
           path: |
@@ -183,6 +183,8 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/')
     needs: [ Vars, Build ]
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps :
       - name: Create a source archive
         id: create-source
@@ -206,13 +208,13 @@ jobs:
           ls -l
 
       - name: Source filelist (dbg)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: src-filelist
           path: |
             src-filelist.txt
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: dist-qemu-*
           path: dist
@@ -243,7 +245,7 @@ jobs:
           rm -rf -- upload && mkdir -p upload && mv -v ${DIST_FILE_LIST} upload/
 
       - name: Release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           draft: true
           files: upload/*

.github/workflows/issue_comment.yml

@@ -8,7 +8,7 @@ jobs:
     name: Sync Issue Comments to Jira
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v6
       - name: Sync issue comments to JIRA
         uses: espressif/github-actions/sync_issues_to_jira@master
         env:

.github/workflows/new_issues.yml

@@ -8,7 +8,7 @@ jobs:
     name: Sync issues to Jira
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v6
       - name: Sync GitHub issues to Jira project
         uses: espressif/github-actions/sync_issues_to_jira@master
         env:

.github/workflows/new_prs.yml

@@ -11,7 +11,7 @@ jobs:
     name: Sync PRs to Jira
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v6
       - name: Sync PRs to Jira project
         uses: espressif/github-actions/sync_issues_to_jira@master
         with: