[SPARK-22516][SQL] Bump up Univocity version to 2.5.9

[smurakozi]

What changes were proposed in this pull request?

There was a bug in Univocity Parser that causes the issue in SPARK-22516. This was fixed by upgrading from 2.5.4 to 2.5.9 version of the library :

Executing

spark.read.option("header","true").option("inferSchema", "true").option("multiLine", "true").option("comment", "g").csv("test_file_without_eof_char.csv").show()

Before

ERROR Executor: Exception in task 0.0 in stage 6.0 (TID 6)
com.univocity.parsers.common.TextParsingException: java.lang.IllegalArgumentException - Unable to skip 1 lines from line 2. End of input reached
...
Internal state when error was thrown: line=3, column=0, record=2, charIndex=31
	at com.univocity.parsers.common.AbstractParser.handleException(AbstractParser.java:339)
	at com.univocity.parsers.common.AbstractParser.parseNext(AbstractParser.java:475)
	at org.apache.spark.sql.execution.datasources.csv.UnivocityParser$$anon$1.next(UnivocityParser.scala:281)
	at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)

After

+-------+-------+
|column1|column2|
+-------+-------+
|    abc|    def|
+-------+-------+

How was this patch tested?

The already existing CSVSuite.commented lines in CSV data test was extended to parse the file also in multiline mode. The test input file was modified to also include a comment in the last line.

[HyukjinKwon]

ok to test

[HyukjinKwon]

LGTM

[HyukjinKwon]

nice

[SparkQA]

Test build #84539 has finished for PR 19906 at commit 8bc6a9c.

• This patch fails Spark unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

retest this please

[SparkQA]

Test build #84549 has finished for PR 19906 at commit 8bc6a9c.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[vanzin]

LGTM, merging to master.

[smurakozi]

Thanks for your help and reviews @HyukjinKwon, @vanzin