fix(ci): replace jq with python3 in update-manifest (jq not in node:20-bookworm)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -189,22 +189,19 @@ jobs:
           VERSION=$(echo "$RELEASE" | python3 -c "import sys,json; print(json.load(sys.stdin)['name'].split()[-1])")
           DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)
 
-          jq -n \
-            --arg version "$VERSION" \
-            --arg date "$DATE" \
-            --arg win_url "$BASE/LotusChat-x86_64-setup.nsis.zip" \
-            --arg win_sig "$WIN_SIG" \
-            --arg lin_url "$BASE/LotusChat-x86_64.AppImage.tar.gz" \
-            --arg lin_sig "$LIN_SIG" \
-            '{
-              version: $version,
-              notes: "Latest Lotus Chat release",
-              pub_date: $date,
-              platforms: {
-                "windows-x86_64": { url: $win_url, signature: $win_sig },
-                "linux-x86_64":   { url: $lin_url, signature: $lin_sig }
-              }
-            }' > release.json
+          python3 -c "
+import json, sys
+win_sig, lin_sig = sys.argv[1], sys.argv[2]
+print(json.dumps({
+  'version': '$VERSION',
+  'notes': 'Latest Lotus Chat release',
+  'pub_date': '$DATE',
+  'platforms': {
+    'windows-x86_64': {'url': '$BASE/LotusChat-x86_64-setup.nsis.zip', 'signature': win_sig},
+    'linux-x86_64':   {'url': '$BASE/LotusChat-x86_64.AppImage.tar.gz', 'signature': lin_sig}
+  }
+}, indent=2))
+" "$WIN_SIG" "$LIN_SIG" > release.json
 
           cat release.json