Bug 1661585 - update WNP locales list for 81. r=mtabara

Differential Revision: https://phabricator.services.mozilla.com/D90069

browser/config/whats_new_page.yml

@@ -18,10 +18,10 @@
       # This is done by taskgraph.
       versions: ["<{version.major_number}.0"]
       locales:
-          - an
           - ca
           - cs
           - cy
+          - da
           - de
           - dsb
           - en-CA
@@ -29,8 +29,9 @@
           - en-US
           - es-AR
           - es-CL
+          - es-MX
           - fr
-          - hr
+          - fy-NL
           - hsb
           - hu
           - ia
@@ -41,20 +42,16 @@
           - nb-NO
           - nl
           - nn-NO
-          - pa-IN
           - pl
           - pt-BR
           - pt-PT
           - ro
           - ru
-          - sk
           - sl
           - sq
-          - sr
           - sv-SE
           - tr
           - uk
-          - ur
           - vi
           - zh-CN
           - zh-TW