Merge pull request tree-sitter#2525 from ahlinc/use-fixture-masters

chore: switch `fetch-fixtures.cmd` to all master branches

Author: ahlinc

script/fetch-fixtures.cmd

@@ -2,12 +2,12 @@
 
 call:fetch_grammar bash              master
 call:fetch_grammar c                 master
-call:fetch_grammar cpp               670404d7c689be1c868a46f919ba2a3912f2b7ef
+call:fetch_grammar cpp               master
 call:fetch_grammar embedded-template master
 call:fetch_grammar go                master
 call:fetch_grammar html              master
 call:fetch_grammar java              master
-call:fetch_grammar javascript        partial-order-precedences
+call:fetch_grammar javascript        master
 call:fetch_grammar jsdoc             master
 call:fetch_grammar json              master
 call:fetch_grammar php               master