meson,ci: Add the paste crate

Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27397>

subprojects/packagefiles/paste/meson.build

@@ -0,0 +1,18 @@
+project(
+  'paste',
+  'rust',
+  version : '1.0.14',
+  license : '(MIT or Apache-2.0)',
+)
+
+add_languages('rust', required: true)
+rust = import('rust')
+
+lib = rust.proc_macro(
+  'paste',
+  files('src/lib.rs')
+)
+
+dep_paste = declare_dependency(
+  link_with : [lib],
+)