Add architecture during device linking

[rzambre]

Without this fix, I see the following warnings when compiling DeepEP for a specific architecture, which leads to runtime errors with test_low_latency.py

nvlink warning : SM Arch ('sm_75') not found in 'DeepEP/build/temp.linux-x86_64-cpython-312/csrc/kernels/internode.o'
nvlink warning : SM Arch ('sm_75') not found in 'DeepEP/build/temp.linux-x86_64-cpython-312/csrc/kernels/internode_ll.o'
nvlink warning : SM Arch ('sm_75') not found in 'DeepEP/build/temp.linux-x86_64-cpython-312/csrc/kernels/intranode.o'
nvlink warning : SM Arch ('sm_75') not found in 'DeepEP/build/temp.linux-x86_64-cpython-312/csrc/kernels/layout.o'
nvlink warning : SM Arch ('sm_75') not found in 'DeepEP/build/temp.linux-x86_64-cpython-312/csrc/kernels/runtime.o'

Before this PR:

> cuobjdump -lelf DeepEP/build/lib.linux-x86_64-cpython-312/deep_ep_cpp.cpython-312-x86_64-linux-gnu.so 2>&1 | grep "sm_"
ELF file    1: deep_ep_cpp.cpython-312-x86_64-linux-gnu.1.sm_75.cubin

After this PR:

> cuobjdump -lelf DeepEP/build/lib.linux-x86_64-cpython-312/deep_ep_cpp.cpython-312-x86_64-linux-gnu.so 2>&1 | grep "sm_"
ELF file    1: deep_ep_cpp.cpython-312-x86_64-linux-gnu.1.sm_103.cubin