nghttp2: update to 1.43.0.

By ericonr:
- python3 deps are necessary only if python bindings are being built,
which nothing requires; disable them for now. If bindings switch to
being built, following env vars are also needed for cross (found by
skmpz):
      export PYTHON_CPPFLAGS="-I${XBPS_CROSS_BASE}/${py3_inc}"
      export PYTHON_EXTRA_LIBS="-L${XBPS_CROSS_BASE}/usr/lib -lpython${py3_ver}"

Closes: #28707 [via git-merge-pr]

srcpkgs/nghttp2/template

@@ -1,8 +1,10 @@
 # Template file for 'nghttp2'
 pkgname=nghttp2
-version=1.42.0
+version=1.43.0
 revision=1
 build_style=gnu-configure
+# build system errors out if python isn't available
+configure_args="--disable-python-bindings"
 hostmakedepends="pkg-config"
 makedepends="zlib-devel libressl-devel libevent-devel jansson-devel
  libev-devel c-ares-devel"
@@ -12,7 +14,7 @@ maintainer="skmpz <dem.procopiou@gmail.com>"
 license="MIT"
 homepage="https://nghttp2.org"
 distfiles="https://github.com/tatsuhiro-t/nghttp2/releases/download/v${version}/nghttp2-${version}.tar.xz"
-checksum=c5a7f09020f31247d0d1609078a75efadeccb7e5b86fc2e4389189b1b431fe63
+checksum=f7d54fa6f8aed29f695ca44612136fa2359013547394d5dffeffca9e01a26b0f
 python_version=3
 
 post_install() {