python3-grpcio: update gRPC repo roots

See https://emudhra.we-have-a-problem.com/

Use a copy function instead of adding the patch two times becuase there
are two copies of certificates in the sources.

Signed-off-by: Peter Marko <peter.marko@siemens.com>

meta-python/recipes-devtools/python/python3-grpcio_1.78.0.bb

@@ -13,6 +13,8 @@ DEPENDS += "c-ares openssl python3-protobuf re2 zlib"
 SRC_URI += "file://0001-python-enable-unbundled-cross-compilation.patch \
            file://0001-Fix-OpenSSL-4.0-compatibility.patch \
            file://abseil-ppc-fixes.patch \
+           file://0001-Update-repo-roots-to-chromium-roots-42094.patch \
+           file://0001-Update-gRPC-repo-roots.-43699.patch \
            "
 SRC_URI[sha256sum] = "7382b95189546f375c174f53a5fa873cef91c4b8005faa05cc5b3beea9c4f1c5"
 
@@ -32,6 +34,10 @@ export GRPC_PYTHON_BUILD_SYSTEM_OPENSSL = "1"
 export GRPC_PYTHON_BUILD_SYSTEM_RE2 = "1"
 export GRPC_PYTHON_BUILD_SYSTEM_ZLIB = "1"
 
+do_configure:prepend() {
+    cp ${S}/etc/roots.pem ${S}/src/python/grpcio/grpc/_cython/_credentials/roots.pem
+}
+
 do_configure:append() {
     # Relax strict cython version pin so that the available cython satisfies the requirement.
     # The C files are pre-generated so cython is not actually used during compilation.