chore: import GPG key from env without echo -e.

Pass the armored key as an environment variable and pipe it to gpg so the GitHub secret can keep real newlines.

Signed-off-by: Haotian Zhang <928016560@qq.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

.github/workflows/release.yml

@@ -23,6 +23,7 @@ jobs:
           MAVEN_USERNAME: ${{ secrets.CENTRAL_PORTAL_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.CENTRAL_PORTAL_TOKEN }}
           MAVEN_GPG_PASSPHRASE: ${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }}
+          OSSRH_GPG_SECRET_KEY: ${{ secrets.OSSRH_GPG_SECRET_KEY }}
         run: |
-          cat <(echo -e "${{ secrets.OSSRH_GPG_SECRET_KEY }}") | gpg --batch --import;
+          printf '%s\n' "$OSSRH_GPG_SECRET_KEY" | gpg --batch --import
           mvn clean deploy -B -U -P release -Dmaven.test.skip=true