fix(ci): disable pipefail during element detection to prevent SIGPIPE exit

The find|grep|head pipe under bash pipefail causes SIGPIPE when head
closes the pipe after reading one line, making the step exit with code 1
even though the version bump and push succeeded.

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

.mokogitea/workflows/pre-release.yml

@@ -90,17 +90,19 @@ jobs:
           git remote set-url origin "https://jmiller:${{ secrets.GA_TOKEN }}@git.mokoconsulting.tech/${{ github.repository }}.git"
 
           # Detect element from Joomla/Dolibarr manifest
+          set +o pipefail
           PLATFORM="${{ steps.platform.outputs.platform }}"
           EXT_ELEMENT=$(php ${MOKO_API}/manifest_read.php --path . --field name 2>/dev/null | tr -d ' ' | tr '[:upper:]' '[:lower:]' || true)
           # For Joomla, prefer <element> tag
           if [ "$PLATFORM" = "joomla" ]; then
-            MANIFEST=$(find . -maxdepth 3 -name "*.xml" ! -path "./.git/*" -exec grep -l '<extension' {} \; 2>/dev/null | head -1 || true)
+            MANIFEST=$(find . -maxdepth 4 -name "*.xml" ! -path "./.git/*" -print0 2>/dev/null | xargs -0 grep -l '<extension' 2>/dev/null | head -1 || true)
             if [ -n "$MANIFEST" ]; then
-              ELEM=$(grep -oP "<element>\K[^<]+" "$MANIFEST" 2>/dev/null | head -1)
+              ELEM=$(grep -oP "<element>\K[^<]+" "$MANIFEST" 2>/dev/null | head -1 || true)
               [ -n "$ELEM" ] && EXT_ELEMENT="$ELEM"
             fi
           fi
           [ -z "$EXT_ELEMENT" ] && EXT_ELEMENT=$(echo "${GITEA_REPO}" | tr '[:upper:]' '[:lower:]' | tr -d ' -')
+          set -o pipefail
 
           ZIP_NAME="${EXT_ELEMENT}-${VERSION}${SUFFIX}.zip"