floorp: enable WebRTC support

WebRTC is enabled in official builds provided by the project itself.
Thus enable it in our builds too (see also #266620).

Signed-off-by: Christoph Heiss <christoph@c8h4.io>

pkgs/applications/networking/browsers/floorp/default.nix

@@ -45,6 +45,7 @@
   tests = [ nixosTests.floorp ];
 }).override {
   privacySupport = true;
+  webrtcSupport = true;
   enableOfficialBranding = false;
 }).overrideAttrs (prev: {
   MOZ_REQUIRE_SIGNING = "";