Skip internal logging in compat check (#123940)

The stable API compatibility checks ensure public jars don't change
their APIs in incompatible ways. Yet the logging jar has an internal
package which can change arbitrarily. This commit adds a temporary
workaround to skip the internal logging package until the compat check
can be made to look at module-info.

Author: rjernst

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/JarApiComparisonTask.java

@@ -111,7 +111,11 @@ private String getPath() {
         List<String> classNames() throws IOException {
             Pattern classEnding = Pattern.compile(".*\\.class$");
             try (JarFile jf = new JarFile(this.path)) {
-                return jf.stream().map(ZipEntry::getName).filter(classEnding.asMatchPredicate()).collect(Collectors.toList());
+                return jf.stream()
+                    .map(ZipEntry::getName)
+                    .filter(classEnding.asMatchPredicate())
+                    .filter(c -> c.startsWith("org/elasticsearch/logging/internal/") == false)
+                    .collect(Collectors.toList());
             }
         }