python3-ruff: Fix build on targets without 64-bit atomics

std only provides AtomicU64 on targets with 64-bit atomics, so ruff
fails to build for riscv32:

  error[E0432]: unresolved import `std::sync::atomic::AtomicU64`
   --> crates/ruff/src/cache.rs:7:25

Add a patch that uses portable-atomic's AtomicU64 for the cache
timestamp on such targets, archived in the same on-disk format.

AI-Generated: Uses Claude Code
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-python/recipes-devtools/python/python3-ruff_0.17.1.bb

@@ -6,6 +6,8 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=e679ca4f742cbfa29ab6a499529c2d39"
 
 DEPENDS += "python3-maturin-native"
 
+SRC_URI += "file://0001-ruff-Use-portable-atomic-for-AtomicU64-on-targets-wi.patch"
+
 SRC_URI[sha256sum] = "5bb796c5112e9fb9527f2ef2faa0a130d6312d19de92bcfaddd70dbb2d41020f"
 
 inherit pypi python_setuptools3_rust cargo-update-recipe-crates