meson: Move libspectre to test_deps
libspectre is only used for ps tests. Adding it to "deps" needlessly makes it show up in cairo.pc's Requires.private.
Fixes: #425 (closed) Signed-off-by: Uli Schlachter psychon@znc.in
libspectre is only used for ps tests. Adding it to "deps" needlessly makes it show up in cairo.pc's Requires.private.
Fixes: #425 (closed) Signed-off-by: Uli Schlachter psychon@znc.in