ci: update GitHub release workflow to use RELEASE_TOKEN for improved security

.github/workflows/github-release.yml

@@ -3,7 +3,7 @@ name: GitHub Release
 on:
   workflow_call:
     secrets:
-      GITHUB_TOKEN:
+      RELEASE_TOKEN:
         description: 'GitHub token for release creation'
         required: true
 
@@ -104,7 +104,7 @@ jobs:
 
     - name: Create GitHub Release
       env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
       run: |
         VERSION=${{ steps.get_version.outputs.VERSION }}
         cd .pio/build/esp32dev

.github/workflows/release.yml

@@ -31,7 +31,7 @@ jobs:
     if: needs.detect-provider.outputs.provider == 'github'
     uses: ./.github/workflows/github-release.yml
     secrets:
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      RELEASE_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
   gitea-release:
     needs: detect-provider