fix ci can not find sec key file

Author: DanielLiu1123

.github/workflows/release.yml

@@ -22,4 +22,4 @@ jobs:
         run: openssl enc -aes-256-cbc -d -pbkdf2 -in private.key.bin -out private.key -pass pass:${{ secrets.privateKeyPassword }}
 
       - name: Release
-        run: RELEASE=true OSSRH_USER=${{ secrets.OSSRH_USER }} OSSRH_PASSWORD=${{ secrets.OSSRH_PASSWORD }} ./gradlew publish -Psigning.secretKeyRingFile=private.key -Psigning.keyId=${{ secrets.signKeyId }} -Psigning.password=${{ secrets.signPassword }}
+        run: RELEASE=true OSSRH_USER=${{ secrets.OSSRH_USER }} OSSRH_PASSWORD=${{ secrets.OSSRH_PASSWORD }} ./gradlew publish -Psigning.secretKeyRingFile=$(pwd)/private.key -Psigning.keyId=${{ secrets.signKeyId }} -Psigning.password=${{ secrets.signPassword }}