Set test toolchains to @rules_java//toolchains:

The test target toolchain updates resolve the following errors under
Bazel 6.5.0:

```txt
$ bazel build //{src,jmh,test,third_party,scala_proto}/...

[ ...snip... ]

ERROR: test/src/main/resources/java_sources/BUILD:11:14:
  Building test/src/main/resources/java_sources/CompiledWithJava11_java.jar
  (1 source file) failed: Worker process did not return a WorkResponse:

---8<---8<--- Start of log, file at .../bazel-workers/multiplex-worker-33-Javac.log ---8<---8<---
Error thrown by worker thread, shutting down worker.
  java.lang.UnsupportedClassVersionError:
  com/google/errorprone/ErrorProneError has been compiled by a more
  recent version of the Java Runtime (class file version 61.0), this
  version of the Java Runtime only recognizes class file versions up to
  55.0
    at java.base/java.lang.ClassLoader.defineClass1(Native Method)
    [ ...snip... ]

ERROR: test/src/main/resources/java_sources/BUILD:5:14:
  Building test/src/main/resources/java_sources/CompiledWithJava8_java.jar
  (1 source file) failed: Worker process did not return a WorkResponse:

---8<---8<--- Start of log, file at .../bazel-workers/multiplex-worker-33-Javac.log ---8<---8<---
Error thrown by worker thread, shutting down worker.
  java.lang.UnsupportedClassVersionError:
  com/google/errorprone/ErrorProneError has been compiled by a more
  recent version of the Java Runtime (class file version 61.0), this
  version of the Java Runtime only recognizes class file versions up to
  55.0
    at java.base/java.lang.ClassLoader.defineClass1(Native Method)
    [ ...snip... ]
```

Bazel 6.5.0 now breaks with the expected error, fixed by:

- bazelbuild/rules_java@30ecf3f
- `rules_java` 7.10.0

```txt
$ bazel build //{src,jmh,test,third_party,scala_proto}/...

ERROR:
  .../external/rules_java/toolchains/java_toolchain_alias.bzl:83:34:
  Use of Starlark transition without allowlist attribute
  '_allowlist_function_transition'. See Starlark transitions
  documentation for details and usage:
  @rules_java//toolchains:java_toolchain_alias.bzl NORMAL

ERROR: test/aspect/BUILD:67:26:
  While resolving toolchains for target
  //test/aspect:javainfo_from_aspect_test:
  invalid registered toolchain '//toolchains:all':
  while parsing '//toolchains:all':
  error loading package '@rules_java//toolchains':
  initialization of module 'toolchains/java_toolchain_alias.bzl' failed
```

Bazel 7.4.1 builds, and Bazel 8.0.0rc6 and 8.0.0rc7 fail as described in
the previous commit.

Author: mbland

test/BUILD

@@ -782,7 +782,7 @@ scala_library(
         "src/main/scala/scalarules/test/junit/runtime_platform/JunitRuntimePlatformTest.java",
     ],
     # make sure java compilation toolchain matches runtime toolchain ie --target
-    java_compile_toolchain = "@bazel_tools//tools/jdk:toolchain_java11",
+    java_compile_toolchain = "@rules_java//toolchains:toolchain_java11",
     deps = ["@io_bazel_rules_scala_junit_junit"],
 )
 

test/src/main/resources/java_sources/BUILD

@@ -5,11 +5,11 @@ package(default_visibility = ["//visibility:public"])
 scala_library(
     name = "CompiledWithJava8",
     srcs = ["SimpleJavaSourceFileA.java"],
-    java_compile_toolchain = "@bazel_tools//tools/jdk:toolchain_java8",
+    java_compile_toolchain = "@rules_java//toolchains:toolchain_java8",
 )
 
 scala_library(
     name = "CompiledWithJava11",
     srcs = ["SimpleJavaSourceFileB.java"],
-    java_compile_toolchain = "@bazel_tools//tools/jdk:toolchain_java11",
+    java_compile_toolchain = "@rules_java//toolchains:toolchain_java11",
 )