package/{python-}protobuf: bump to version 3.18.0

python-protobuf no longer supports python2, so depend on
BR2_PACKAGE_PYTHON3. Reverse dependencies already depend on
python3.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Reviewed-by: Michael Nosthoff <buildroot@heine.tech>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/protobuf/protobuf.hash

@@ -1,3 +1,3 @@
 # Locally calculated
 sha256  6e5e117324afd944dcf67f36cf329843bc1a92229a8cd9bb573d7a83130fea7d  LICENSE
-sha256  51cec99f108b83422b7af1170afd7aeb2dd77d2bcbb7b6bad1f92509e9ccf8cb  protobuf-cpp-3.17.3.tar.gz
+sha256  7308590dbb95e77066b99c5674eed855c8257e70658d2af586f4a81ff0eea2b1  protobuf-cpp-3.18.0.tar.gz

package/protobuf/protobuf.mk

@@ -7,7 +7,7 @@
 # When bumping this package, make sure to also verify if the
 # python-protobuf package still works and to update its hash,
 # as they share the same version/site variables.
-PROTOBUF_VERSION = 3.17.3
+PROTOBUF_VERSION = 3.18.0
 PROTOBUF_SOURCE = protobuf-cpp-$(PROTOBUF_VERSION).tar.gz
 PROTOBUF_SITE = https://github.com/protocolbuffers/protobuf/releases/download/v$(PROTOBUF_VERSION)
 PROTOBUF_LICENSE = BSD-3-Clause

package/python-protobuf/Config.in

@@ -2,6 +2,7 @@ config BR2_PACKAGE_PYTHON_PROTOBUF
 	bool "python-protobuf"
 	# host-protobuf only builds on certain architectures
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_PACKAGE_PYTHON3
 	select BR2_PACKAGE_PYTHON_SIX # runtime
 	help
 	  Python implementation of the Google Protocol Buffers.

package/python-protobuf/python-protobuf.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  3253c6d17ec0bb6f6382e555cf5ca0a9ffab8d81b691f100f96ce9f5e753018e  protobuf-python-3.17.3.tar.gz
+sha256  4f792034070915819065c162a310142d66835333824e2e0a2ca26ed54b013408  protobuf-python-3.18.0.tar.gz
 sha256  6e5e117324afd944dcf67f36cf329843bc1a92229a8cd9bb573d7a83130fea7d  LICENSE