ci: move archive changelog to own job

.github/workflows/build.yml

@@ -13,6 +13,29 @@ on:
   workflow_dispatch:
 
 jobs:
+  archive-changelog:
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: main
+
+      - name: Save changelog
+        if: startsWith(github.ref, 'refs/tags/')
+        run: cp 'changelogs/CHANGELOG - latest.md' 'changelogs/CHANGELOG - ${{ github.ref_name }}.md'
+
+      - name: Commit changelog
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          git config --global user.name 'Github Actions'
+          git config --global user.email '[email protected]'
+          git add 'changelogs/CHANGELOG - ${{ github.ref_name }}.md'
+          git commit -am "Save changelog"
+          git push
+
   build:
     runs-on: ubuntu-latest
     permissions:
@@ -66,23 +89,10 @@ jobs:
         if: startsWith(github.ref, 'refs/tags/')
         run: mv build/app/outputs/flutter-apk/app-release.apk build/app/outputs/flutter-apk/${{ github.ref_name }}-release.apk
 
-      - name: Save changelog
-        if: startsWith(github.ref, 'refs/tags/')
-        run: cp 'changelogs/CHANGELOG - latest.md' 'changelogs/CHANGELOG - ${{ github.ref_name }}.md'
-
-      - name: Commit changelog
-        if: startsWith(github.ref, 'refs/tags/')
-        run: |
-          git config --global user.name 'Github Actions'
-          git config --global user.email '[email protected]'
-          git add 'changelogs/CHANGELOG - ${{ github.ref_name }}.md'
-          git commit -am "Save changelog"
-          git push
-
       - name: Create Release
         uses: softprops/action-gh-release@v2
         if: startsWith(github.ref, 'refs/tags/')
         with:
-          body_path: 'changelogs/CHANGELOG - ${{ github.ref_name }}.md'
+          body_path: 'changelogs/CHANGELOG - latest.md'
           token: ${{ secrets.GITHUB_TOKEN }}
           files: build/app/outputs/flutter-apk/${{ github.ref_name }}-release.apk