fix name

Author: doki23

.github/workflows/prql-java-test.yaml

@@ -22,6 +22,6 @@ jobs:
           rustup target add x86_64-unknown-linux-gnu
           cd ./
           cargo build --release --target=x86_64-unknown-linux-gnu
-          cp -f target/x86_64-unknown-linux-gnu/release/libprql_java.so prql-java/java/src/main/resources/libprql_java-linux64.so
+          cp -f target/x86_64-unknown-linux-gnu/release/libprql4j.so prql-java/java/src/main/resources/libprql4j-linux64.so
       - name: Maven test
         run: cd ./java-api/ && ./mvnw test