feat(tests): add resume metric to boot time tests

Since we already collect this delta, put it into
metrics as well.

Signed-off-by: Egor Lazarchuk <[email protected]>

Author: ShadowCurse

tests/integration_tests/performance/test_boottime.py

@@ -128,9 +128,11 @@ def test_boottime(
             unit="Microseconds",
         )
 
-        timestamps = find_events(vm.log_data)
-        build_time = timestamps["build microvm for boot"]["duration"]
+        events = find_events(vm.log_data)
+        build_time = events["build microvm for boot"]["duration"]
         metrics.put_metric("build_time", build_time.microseconds, unit="Microseconds")
+        resume_time = events["boot microvm"]["duration"]
+        metrics.put_metric("resume_time", resume_time.microseconds, unit="Microseconds")
 
         kernel, userspace, total = get_systemd_analyze_times(vm)
         metrics.put_metric("systemd_kernel", kernel, unit="Milliseconds")