firedrakeproject/fiat: 2025.10.1

What's Changed tpe: rename sub_elements tensor_product_components by @ksagiyam in https://github.com/firedrakeproject/fiat/pull/148 Proposal: use upstream UFL instead of the Firedrake fork by @connorjward in https://github.com/firedrakeproject/fiat/pull/147 DO NOT SQUASH Merge release by @connorjward in https://github.com/firedrakeproject/fiat/pull/160 Remove functional.index_iterator by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/157 Lazy basis_tabulation by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/162 GEM: improve style by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/164 TensorProductCell: fix is_macrocell() method by @ksagiyam in https://github.com/firedrakeproject/fiat/pull/170 DO NOT SQUASH merge release by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/173 DO NOT SQUASH merge release into main by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/178 Spectral KMV by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/177 Unimplemented DualSet for TrimmedSerendipity by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/182 Use petsctools for citations by @connorjward in https://github.com/firedrakeproject/fiat/pull/180 DO NOT SQUASH Merge main by @connorjward in https://github.com/firedrakeproject/fiat/pull/188 Tidy up workflows by @connorjward in https://github.com/firedrakeproject/fiat/pull/189 gem: disable making temporaries for VariableIndexs by @ksagiyam in https://github.com/firedrakeproject/fiat/pull/195 Lumped mass quadrature scheme by @pbrubeck in https://github.com/firedrakeproject/fiat/pull/197 Full Changelog: https://github.com/firedrakeproject/fiat/compare/2025.4.2...2025.10.1