meson: Replace configure_file with fs.copyfile

configure_file is deprecated since 0.64.0, and replace it with
fs.copyfile.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I152baf9da48e5bae8c36710f25b2a932835459ac
diff --git a/meson.build b/meson.build
index 6a5fef9..873e317 100644
--- a/meson.build
+++ b/meson.build
@@ -36,11 +36,11 @@
     install: true
 )
 
-configure_file(
-    input: 'start-ipkvm.service',
-    output: 'start-ipkvm.service',
-    copy: true,
+fs = import('fs')
+fs.copyfile(
+    'start-ipkvm.service',
+    install: true,
     install_dir:
         dependency('systemd').get_variable(
             'systemdsystemunitdir')
-)
+)
\ No newline at end of file