build: Rust: Bump minimum Meson and bindgen version

Meson 1.7.0 is required to ensure that generated bindings
are suitable for use with the selected Rust compiler.

Bindgen is bumped to 0.71.1 which has more permissive handling of
`--rust-target`, enabling (almost) any valid Rust version to be
passed as a target; `-nightly` and `-beta*` suffixes are an exception
to this.

This behaviour is expected to improve further with later versions of
Meson; upstream fixes have landed that:

 - pass a stripped version string to bindgen
 - additionally pass an appropriate `--rust-edition` if `rust_std` is
   set (or "nightly" if the compiler is `nightly`).

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12680
Bug: https://bugs.gentoo.org/946913
Signed-off-by: Matt Jolly <kangie@gentoo.org>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33725>

.gitlab-ci/container/build-bindgen.sh

@@ -8,7 +8,7 @@
 
 uncollapsed_section_start bindgen "Building bindgen"
 
-BINDGEN_VER=0.65.1
+BINDGEN_VER=0.71.1
 CBINDGEN_VER=0.26.0
 
 # bindgen

.gitlab-ci/container/install-meson.sh

@@ -8,5 +8,5 @@
 
 rm -f /usr/lib/python3.*/EXTERNALLY-MANAGED
 
-# We need at least 1.4.0 for rusticl
-pip3 install 'meson==1.4.0'
+# We need at least 1.7.0 for proper rust binding generation
+pip3 install 'meson==1.7.0'