fix(dts): remove duplicate network wait prompt in deploy workflows

[fujijin]

Summary\n- remove early network wait check from to avoid duplicated prompt\n- run at concrete download points in and \n- add network check before cloud HCL lookup in \n\n## Why\nIssue #1219 reports repeated "Waiting for network connection" message.\n\n## Validation\n- syntax check: \n- reviewed flow to keep download-time checks in deploy paths\n\nCloses Dasharo/dasharo-issues#1219

[fujijin]

Summary

• remove early network wait check from board_config() to avoid duplicated prompt
• run wait_for_network_connection true at concrete download points in install_workflow() and update_workflow()
• add network check before cloud HCL lookup in restore()

Why

Issue #1219 reports repeated "Waiting for network connection" message.

Validation

• syntax check: bash -n include/dts-functions.sh scripts/dasharo-deploy.sh
• reviewed flow to keep download-time checks in deploy paths

Closes Dasharo/dasharo-issues#1219

[fujijin]

Ready-for-review follow-up:\n\n- removed duplicate early network wait prompt path\n- kept wait checks at actual download points in deploy/update flows\n- added restore-path network check before cloud HCL lookup\n\nPlease share any scenario where the prompt still appears twice and I’ll patch promptly.