.gitignore: add new test build output These two files are new added build output: test/bpf_cp.tt test/bpf_nops.tt Signed-off-by: Haiyue Wang <haiyuewa@163.com> Link: https://patch.msgid.link/20260426112732.300165-2-haiyuewa@163.com Signed-off-by: Jens Axboe <axboe@kernel.dk>