Try fix

Author: purejava

.github/workflows/release_to_maven.yml

@@ -18,7 +18,7 @@ jobs:
           mkdir -p ~/.gradle
           echo -n "signing.keyId=ABC48776" >> ~/.gradle/gradle.properties
           echo -n "signing.password=${GPG_SIGNING_KEY_PW}" >> ~/.gradle/gradle.properties
-          echo -n "signing.secretKeyRingFile=${GPG_SIGNING_KEY}" >> ~/.gradle/gradle.properties
+          echo -n "signing.secretKeyRingFile=```${GPG_SIGNING_KEY}```" >> ~/.gradle/gradle.properties
         env:
           GPG_SIGNING_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
           GPG_SIGNING_KEY_B64: ${{ secrets.GPG_PRIVATE_KEY_B64 }}