chore: update qtox toxcore to 0.2.21

Author: Green-Sky

qtox/download/download_toxcore.sh

@@ -6,11 +6,11 @@
 
 set -euo pipefail
 
-TOXCORE_VERSION=0.2.20
-TOXCORE_HASH=a9c89a8daea745d53e5d78e7aacb99c7b4792c4400a5a69c71238f45d6164f4c
+TOXCORE_VERSION=0.2.21
+TOXCORE_HASH=5998470ea3d32067ffcb9411746720e9537406ba318166ebd75deddd75ad74b7
 
 source "$(dirname "$(realpath "$0")")/common.sh"
 
 download_verify_extract_tarball \
-  https://github.com/TokTok/c-toxcore/releases/download/v"$TOXCORE_VERSION/c-toxcore-$TOXCORE_VERSION".tar.gz \
+  https://github.com/TokTok/c-toxcore/releases/download/v"$TOXCORE_VERSION/v$TOXCORE_VERSION".tar.gz \
   "$TOXCORE_HASH"