[Deps] Update finn-experimental version (domain name update)

fetch-repos.sh

@@ -28,7 +28,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 QONNX_COMMIT="dd35a8ff49d7225a07ffceeebe25a6361df48349"
-FINN_EXP_COMMIT="53049bf5025dbc0a11dc19355325b1a02c3947c0"
+FINN_EXP_COMMIT="448bd6f5ee1dbf9e2f9cda014e2f875bc6d49ae0"
 BREVITAS_COMMIT="a5b71d6de1389d3e7db898fef72e014842670f03"
 PYVERILATOR_COMMIT="766e457465f5c0dd315490d7b9cc5d74f9a76f4f"
 CNPY_COMMIT="4e8810b1a8637695171ed346ce68f6984e585ef4"