community/firefox: disable Widevine CDM support

fixes #15594

community/firefox/APKBUILD

@@ -5,7 +5,7 @@
 pkgname=firefox
 pkgver=121.0
 _releasedate=2023-12-19
-pkgrel=0
+pkgrel=1
 pkgdesc="Firefox web browser"
 url="https://www.firefox.com/"
 # s390x blocked by lld
@@ -773,5 +773,5 @@ b7d0a6126bdf6c0569f80aabf5b37ed2c7a35712eb8a0404a2d85381552f5555d4f97d213ea26cec
 333b9df0c8a7693601245dac13522c9e90632f490b2fe1b852bf85fbd033c111a82fec3cfc302cfdea62d591c51042ae69c2c33a5668afacca11ea1f215188bc  firefox.desktop
 9869ef092609af4caed6aa27f3de6ac49b91ef993ccbfd8a2080465def442d3b02745fbe3c71d362f07c3075d46f388a023c0ad8ebb5f6ffd37e601d997b74f7  distribution.ini
 382510375b1a2fa79be0ab79e3391a021ae2c022429ffbaa7e7a69166f99bb56d01e59a1b10688592a29238f21c9d6977672bd77f9fae439b66bdfe0c55ddb15  mozilla-location.keys
-110ff5584c0f900ed9ca6cfdaf343303173fa930cac5a85b7bd93a94268fa3a71b76b203ac9aae3c783255d4848b0fe5d45f51efc416f1d1f6f6a82ce56208aa  vendor-prefs.js
+0423804a3c7c075de128b624110c58994ec8e10819fc09b74fdb4cd5aa6c0365cdafc77770af42f4ce856ad2e8e325a918344c57fb015a680b7e54555b94c6ed  vendor-prefs.js
 "

community/firefox/vendor-prefs.js

@@ -13,3 +13,7 @@ pref("extensions.shownSelectionUI", true);
 
 // Disable sponsored tiles from "Mozilla Tiles Service"
 pref("browser.topsites.contile.enabled", false);
+
+// Disable Widevine CDM support (doesn't work on musl anyway)
+pref("media.gmp-widevinecdm.visible", false);
+pref("media.gmp-widevinecdm.enabled", false);