ci: Bump Meson to 0.57.1

0.57.0 has a bug where the whole test harness crashes when using TAP and
failing tests, cf. https://github.com/mesonbuild/meson/pull/8385

Signed-off-by: Daniel Stone <daniels@collabora.com>

.gitlab-ci.yml

@@ -43,7 +43,7 @@
 variables:
   FDO_UPSTREAM_REPO: wayland/weston
   FDO_REPO_SUFFIX: "$BUILD_OS/$BUILD_ARCH"
-  FDO_DISTRIBUTION_TAG: '2021-07-31.1-wayland-protocols'
+  FDO_DISTRIBUTION_TAG: '2021-08-02.2-meson'
 
 
 include:

.gitlab-ci/build-deps.sh

@@ -12,9 +12,10 @@ export MAKEFLAGS="-j${FDO_CI_CONCURRENT:-4}"
 export NINJAFLAGS="-j${FDO_CI_CONCURRENT:-4}"
 
 # Build and install Meson. Generally we want to keep this in sync with what
-# we require inside meson.build, however per wayland/weston@bcf37c937a36,
+# we require inside meson.build, however we require at least 0.57.0 per
-# we use a higher version here 
+# wayland/weston@bcf37c937a36, and 0.57.1 to fix the TAP parser when a test
-pip3 install --user git+https://github.com/mesonbuild/meson.git@0.57.0
+# exits unsuccessfully
+pip3 install --user git+https://github.com/mesonbuild/meson.git@0.57.1
 export PATH=$HOME/.local/bin:$PATH
 
 # Our docs are built using Sphinx (top-level organisation and final HTML/CSS