SQLite 3.41.0 and pearson correlation extension function (#106)

* Build SQLite 3.41.0

* Update pivot_vtab

* Add Pearson correlation coefficient function extension, build

* Add an easy way to running test locally without Nodejs

* Use RSS sum to pick top2 processes for the report

* Try previous Ubuntu LTS as a workaround for Firefox worker not starting

lib/sql-js/benchmark/procpath/top2_rss.sql

@@ -2,7 +2,7 @@ WITH one_time_pid_condition AS (
     SELECT stat_pid
     FROM record
     GROUP BY 1
-    ORDER BY MAX(stat_rss) DESC
+    ORDER BY SUM(stat_rss) DESC
     LIMIT 2
 )
 SELECT