test: add native tests for GraalVM for JDK 23 (#3536)

* test: add native tests for GraalVM for JDK 23

This is in addition to the already existing native checks against GraalVM for JDK 21

* use better names for matrix elements

* add missing protobuf class

We probably want to do this up in gax-java/gax

* Delete spring-cloud-gcp-core/src/main/resources/META-INF/native-image/com.google.cloud/spring-cloud-gcp-core/native-image.properties

Author: diegomarquezp

.github/workflows/NativeTests.yaml

@@ -25,6 +25,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        graalvm_for_jdk_version:
+          - 21
+          - 23
         it:
           - alloydb-sample
           - bigquery-sample
@@ -82,7 +85,7 @@ jobs:
             install
       - uses: graalvm/setup-graalvm@v1
         with:
-          java-version: '21'
+          java-version: ${{ matrix.graalvm_for_jdk_version }}
           distribution: 'graalvm-community'
           components: 'native-image'
           github-token: ${{ secrets.GITHUB_TOKEN }}