Toolchain: Update Jakt to latest commit

This fixes building the Jakt toolchain after c717b91897 added a
subdirectory in AK: AK/Math.
Previously, the "build jakt support libs" step failed because Jakt's
DirectoryIterator didn't treat symlinks to directories as directories.

Toolchain/BuildJakt.sh

@@ -85,7 +85,7 @@ buildstep_ninja() {
 
 mkdir -p "$DIR/Tarballs"
 
-JAKT_COMMIT_HASH="6f6c9e9005683b0c1cf59f6282a1bb15770e1c92"
+JAKT_COMMIT_HASH="825f6870a1795caeebb759f1d27a4d57e4fb7a31"
 JAKT_NAME="jakt-${JAKT_COMMIT_HASH}"
 JAKT_TARBALL="${JAKT_NAME}.tar.gz"
 JAKT_GIT_URL="https://github.com/serenityos/jakt"