Disable date parsing test in non english locale (#39052)

This ensures we do not attempt to parse non english locale dates
in FIPS mode. The error, originally assumed to affect only Joda,
affects Java time in the same manner and manifests only with the
version of BouncyCastle FIPS certified provider we use in tests.
The upstream issue bcgit/bc-java#405
indicates that the behavior is resolved in later versions of the
BouncyCastle library and should be tested again when the new
versions become FIPS 140 certified

Author: jkakavas

modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/DateProcessorTests.java

@@ -126,7 +126,6 @@ public void testInvalidJavaPattern() {
     }
 
     public void testJavaPatternLocale() {
-        // @AwaitsFix(bugUrl="https://github.com/elastic/elasticsearch/issues/31724")
         assumeFalse("Can't run in a FIPS JVM, Joda parse date error", inFipsJvm());
         DateProcessor dateProcessor = new DateProcessor(randomAlphaOfLength(10),
             templatize(ZoneId.of("Europe/Amsterdam")), templatize(Locale.ITALIAN),
@@ -138,6 +137,18 @@ public void testJavaPatternLocale() {
         assertThat(ingestDocument.getFieldValue("date_as_date", String.class), equalTo("2010-06-12T00:00:00.000+02:00"));
     }
 
+    public void testJavaPatternEnglishLocale() {
+        // Since testJavaPatternLocale is muted in FIPS mode, test that we can correctly parse dates in english
+        DateProcessor dateProcessor = new DateProcessor(randomAlphaOfLength(10),
+            templatize(ZoneId.of("Europe/Amsterdam")), templatize(Locale.ENGLISH),
+            "date_as_string", Collections.singletonList("yyyy dd MMMM"), "date_as_date");
+        Map<String, Object> document = new HashMap<>();
+        document.put("date_as_string", "2010 12 June");
+        IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), document);
+        dateProcessor.execute(ingestDocument);
+        assertThat(ingestDocument.getFieldValue("date_as_date", String.class), equalTo("2010-06-12T00:00:00.000+02:00"));
+    }
+
     public void testJavaPatternDefaultYear() {
         String format = randomFrom("dd/MM", "8dd/MM");
         DateProcessor dateProcessor = new DateProcessor(randomAlphaOfLength(10),