SOLR-18296: Upgrade google-java-format to 1.35.0

google-java-format 1.18.1 calls a javac internal
(Log$DeferredDiagnosticHandler.getDiagnostics()) whose signature changed in
JDK 24, so tidy/spotlessApply throws NoSuchMethodError on JDK 24+. 1.34.0+
supports the newer JDKs; this bumps to 1.35.0. Java baseline unchanged (21).

The mechanical reformatting produced by the new formatter is in a separate
follow-up commit so it can be added to .git-blame-ignore-revs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: serhiy-bzhezytskyy

changelog/unreleased/gjf-SOLR-18296.yml

@@ -0,0 +1,7 @@
+title: Upgrade google-java-format to 1.35.0 (fixes JDK 24/25 build break)
+type: dependency_update
+authors:
+  - name: Serhiy Bzhezytskyy
+links:
+- name: SOLR-18296
+  url: https://issues.apache.org/jira/browse/SOLR-18296

gradle/libs.versions.toml

@@ -103,7 +103,7 @@ google-guava = "33.6.0-jre"
 # @keep for version alignment
 google-j2objc = "3.1"
 # @keep This is GJF version for spotless/ tidy.
-google-javaformat = "1.18.1"
+google-javaformat = "1.35.0"
 # @keep for version alignment
 google-protobuf = "4.35.1"
 # @keep Gradle version to run the build