flasher driver: always set system date

Otherwise, in labs where ntp is not available for the DUTs to use,
time setting will be wrong and fls, or CA cert checking will fail.

(cherry picked from commit aa8022a)

Author: mangelajo

packages/jumpstarter-driver-flashers/jumpstarter_driver_flashers/client.py

@@ -329,6 +329,13 @@ def _perform_flash_operation(
                 self.logger.error(f"Error running udhcpc: {e}")
                 raise FlashRetryableError(f"Error running udhcpc: {e}") from e
 
+            # make sure that the remote system has the right time without using NTP
+            # otherwise SSL certificate verification will fail
+            self.logger.info("Setting the remote DUT time to match the local system time")
+            current_timestamp = int(time.time())
+            console.sendline(f"date -s @{current_timestamp}")
+            console.expect(manifest.spec.login.prompt, timeout=EXPECT_TIMEOUT_DEFAULT)
+
             stored_cacert = None
             if should_download_to_httpd:
                 self._wait_for_storage_thread(storage_thread, error_queue)
@@ -383,12 +390,6 @@ def _setup_flasher_ssl(self, console, manifest, cacert_file: str | None) -> str
         Raises:
             RuntimeError: If there's an error reading the CA certificate file
         """
-        # make sure that the remote system has the right time without using NTP
-        # otherwise SSL certificate verification will fail
-        self.logger.info("Setting the remote DUT time to match the local system time")
-        current_timestamp = int(time.time())
-        console.sendline(f"date -s @{current_timestamp}")
-        console.expect(manifest.spec.login.prompt, timeout=EXPECT_TIMEOUT_DEFAULT)
 
         if cacert_file:
             cacert = b""