[www] Set Yoga as released

Update Yoga series info in www-generator.py so that Yoga is marked as
maintained, thus released.

This patch needs to be merged at release day, March 30th.

Change-Id: Ibba76eef96046983ba912113dc8388b1f152dfd8

tools/www-generator.py

@@ -68,7 +68,7 @@ SERIES_INFO = {
     'victoria': SeriesInfo(date='October 2020', status='maintained'),
     'wallaby': SeriesInfo(date='April 2021', status='maintained'),
     'xena': SeriesInfo(date='October 2021', status='maintained'),
-    'yoga': SeriesInfo(date='April 2022', status='development'),
+    'yoga': SeriesInfo(date='April 2022', status='maintained'),
     'zed': SeriesInfo(date='October 2022', status='development'),
 }