Espresso: update standalone links to 24.2.1

Author: lewurm

docs/reference-manual/java-on-truffle/README.md

@@ -33,13 +33,13 @@ Espresso passes the Java Compatibility Kit (JCK or TCK for Java SE).
 Espresso is available as a standalone distribution that provides a Java 21 environment.
 You can download a standalone based on Oracle GraalVM or GraalVM Community Edition.
 
-1. Download the Espresso 24.2 standalone for your operating system:
+1. Download the Espresso 24.2.1 standalone for your operating system:
 
-   * [Linux x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.0-linux-amd64.tar.gz)
-   * [Linux AArch64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.0-linux-aarch64.tar.gz)
-   * [macOS x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.0-macos-amd64.tar.gz)
-   * [macOS AArch64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.0-macos-aarch64.tar.gz)
-   * [Windows x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.0-windows-amd64.zip)
+   * [Linux x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.1-linux-amd64.tar.gz)
+   * [Linux AArch64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.1-linux-aarch64.tar.gz)
+   * [macOS x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.1-macos-amd64.tar.gz)
+   * [macOS AArch64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.1-macos-aarch64.tar.gz)
+   * [Windows x64](https://gds.oracle.com/download/espresso/archive/espresso-java21-24.2.1-windows-amd64.zip)
 
 2. Unzip the archive: