upgrade meson to 1.7.0

[dimpase]

          > On macos (mac mini m2) I'm getting

[cysignals-1.12.3] [spkg-install] The Meson build system
[cysignals-1.12.3] [spkg-install] Version: 1.3.1
[cysignals-1.12.3] [spkg-install] Source dir: /Users/buildbot-sage/worker/sage_git/build/local/var/lib/sage/venv-python3.12.5/var/tmp/sage/build/cysignals-1.12.3/src
[cysignals-1.12.3] [spkg-install] Build dir: /Users/buildbot-sage/worker/sage_git/build/local/var/lib/sage/venv-python3.12.5/var/tmp/sage/build/cysignals-1.12.3/src/.mesonpy-oe6svlmq
[cysignals-1.12.3] [spkg-install] Build type: native build
[cysignals-1.12.3] [spkg-install] Project name: cysignals
[cysignals-1.12.3] [spkg-install] Project version: undefined
[cysignals-1.12.3] [spkg-install] C compiler for the host machine: gcc (clang 15.0.0 "Apple clang version 15.0.0 (clang-1500.3.9.4)")
[cysignals-1.12.3] [spkg-install] C linker for the host machine: gcc ld64 classic  PROJECT:ld64
[cysignals-1.12.3] [spkg-install] 
[cysignals-1.12.3] [spkg-install] ../meson.build:1:0: ERROR: Unable to get clang pre-processor defines:
[cysignals-1.12.3] [spkg-install] Compiler stdout:
[cysignals-1.12.3] [spkg-install] 
[cysignals-1.12.3] [spkg-install] -----
[cysignals-1.12.3] [spkg-install] Compiler stderr:
[cysignals-1.12.3] [spkg-install] error: invalid argument '-std=gnu++11' not allowed with 'C'
[cysignals-1.12.3] [spkg-install] 
[cysignals-1.12.3] [spkg-install] -----

This should be fixed in more recent versions of meson, eg with mesonbuild/meson#13289.

Originally posted by @tobiasdiez in #38749 (comment)

[dimpase]

The current version is 1.7.0, already on Homebrew. Perhaps that's why people don't see this all the time.

[dimpase]

@tobiasdiez @vbraun