[fix] release notes pack

Author: i4004

.github/workflows/build.yml

@@ -76,33 +76,17 @@ jobs:
           name: artifacts
 
       - name: Extract changelog entry
-        id: changelog
         run: |
-          notes=$(python3 -c "
-with open('src/EtcdTerminal.App/CHANGELOG.md') as f:
-    content = f.read()
-entries = content.split('## [')
-if len(entries) > 1:
-    entry = entries[1]
-    idx = entry.find('\n## [', 1)
-    if idx > 0:
-        entry = entry[:idx]
-    nl = entry.find('\n')
-    if nl >= 0:
-        entry = entry[nl:]
-    print(entry.strip())
-")
-          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
-          echo "NOTES<<$EOF" >> $GITHUB_ENV
-          echo "$notes" >> $GITHUB_ENV
-          echo "$EOF" >> $GITHUB_ENV
+          awk '/^## \[/{if(f) exit; f=1; next} f' \
+            src/EtcdTerminal.App/CHANGELOG.md \
+            > /tmp/release_notes.md
 
       - name: Create release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           gh release create "${{ github.ref_name }}" \
             --title "${{ github.ref_name }}" \
-            --notes "$NOTES" \
+            --notes-file /tmp/release_notes.md \
             etcd-terminal-linux-x64.tar.gz \
             etcd-terminal-win-x64.zip