zvariant: Exclude from world for now to avoid reproducibility issues

Ultimately we'll remove this and use for better rust reproducibility
testing too.

(From OE-Core rev: 6c6536a41bfb8651fe94d90898207c5b53673e44)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-selftest/recipes-extended/zvariant/zvariant_3.12.0.bb

@@ -23,5 +23,8 @@ addtask clean_lic_file_symlink after do_unpack before do_patch
 
 inherit cargo cargo-update-recipe-crates
 
+# Remove this when the recipe is reproducible
+EXCLUDE_FROM_WORLD = "1"
+
 require ${BPN}-crates.inc
 require ${BPN}-git-crates.inc