fix StatementParserTests

Author: jan-elastic

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/parser/StatementParserTests.java

@@ -3339,10 +3339,9 @@ public void testPreserveParanthesis() {
 
     public void testRandomSample() {
         expectError("FROM test | RANDOM_SAMPLE .1 2 3", "line 1:32: extraneous input '3' expecting <EOF>");
-        expectError("FROM test | RANDOM_SAMPLE .1 \"2\"", "line 1:30: mismatched input '\"2\"' expecting {INTEGER_LITERAL, '+', '-'}");
+        expectError("FROM test | RANDOM_SAMPLE .1 \"2\"", "line 1:30: extraneous input '\"2\"' expecting <EOF>");
         expectError("FROM test | RANDOM_SAMPLE 1", "line 1:27: mismatched input '1' expecting {DECIMAL_LITERAL, '+', '-'}");
         expectError("FROM test | RANDOM_SAMPLE", "line 1:26: mismatched input '<EOF>' expecting {DECIMAL_LITERAL, '+', '-'}");
-        expectError("FROM test | RANDOM_SAMPLE -.1", "line 1:30: mismatched input '<EOF>' expecting {INTEGER_LITERAL, '+', '-'}");
         expectError("FROM test | RANDOM_SAMPLE +.1 2147483648", "line 1:31: seed must be an integer, provided [2147483648] of type [LONG]");
     }