tests: Mark StressTest as "exclusive" and skip on Windows

This is meant to address a high rate of flakiness in CI.

src/test/java/com/code_intelligence/jazzer/mutation/mutator/BUILD.bazel

@@ -1,10 +1,12 @@
 load("@contrib_rules_jvm//java:defs.bzl", "java_junit5_test")
+load("//bazel:compat.bzl", "SKIP_ON_WINDOWS")
 
 TEST_PARALLELISM = 4
 
 java_junit5_test(
     name = "StressTest",
-    size = "large",
+    size = "enormous",
+    timeout = "long",
     srcs = ["StressTest.java"],
     env = {"JAZZER_MOCK_LIBFUZZER_MUTATOR": "true"},
     jvm_flags = [
@@ -13,7 +15,12 @@ java_junit5_test(
         "-Djunit.jupiter.execution.parallel.config.strategy=fixed",
         "-Djunit.jupiter.execution.parallel.config.fixed.parallelism=" + str(TEST_PARALLELISM),
     ],
-    tags = ["cpu:" + str(TEST_PARALLELISM)],
+    tags = [
+        "cpu:" + str(TEST_PARALLELISM),
+        "exclusive",
+    ],
+    # The test is particularly slow on Windows runners and is not expected to be platform-specific.
+    target_compatible_with = SKIP_ON_WINDOWS,
     deps = [
         "//src/main/java/com/code_intelligence/jazzer/api",
         "//src/main/java/com/code_intelligence/jazzer/driver:fuzzed_data_provider_impl",