feat(guix-seeds): add static sed-4.5 to bootstrap binaries

steps-guix/sed-4.5/pass1.sh

@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+SEED_PREFIX="/bootstrap-seeds/sed-4.5"
+
+src_prepare() {
+    default
+}
+
+src_configure() {
+    CFLAGS="-O2" LDFLAGS="-static" ./configure \
+        --prefix="${SEED_PREFIX}" \
+        --disable-nls \
+        --disable-shared
+}
+
+src_compile() {
+    default_src_compile
+}
+
+src_install() {
+    make DESTDIR="${DESTDIR}" install
+}

steps-guix/sed-4.5/sources

@@ -0,0 +1 @@
+f https://ftp.gnu.org/gnu/sed/sed-4.5.tar.xz 7aad73c8839c2bdadca9476f884d2953cdace9567ecd0d90f9959f229d146b40