Bump DeepEP to f6aa38fe and drop the SSH->HTTPS rewrite (#157)

DeepEP now records an HTTPS DeepJIT URL, so build_vendor no longer needs the git@github.com rewrite.

Co-authored-by: Shaoyuan Chen <chensy@deepseek.com>

scripts/build_vendor.sh

@@ -24,10 +24,8 @@ esac
 PLATFORM_TAG="${DEEPINFER_ACCELERATOR:-nvidia}-$(uname -m)"
 WHEEL_DIR="${WHEEL_DIR:-${REPO_ROOT}/build/${PLATFORM_TAG}/vendor-wheels}"
 
-GIT_REWRITE=(-c url."https://github.com/".insteadOf="git@github.com:")
-
 echo "📥 Initializing submodules ..."
-git -C "${REPO_ROOT}" "${GIT_REWRITE[@]}" submodule update --init
+git -C "${REPO_ROOT}" submodule update --init
 
 target_var() {
   case "$1" in
@@ -46,7 +44,7 @@ for pkg in "${PACKAGES[@]}"; do
   [ "${pkg}" = DeepGEMM ] && envs+=(DG_FORCE_BUILD=1)
   (
     cd "${VENDOR_DIR}/${pkg}"
-    git "${GIT_REWRITE[@]}" submodule update --init --recursive
+    git submodule update --init --recursive
     env "${envs[@]}" python setup.py bdist_wheel --dist-dir "${WHEEL_DIR}"
   )
 done