[Gen3] WiFi resolve tests need retries

[keeramis]

Problem

WiFi.resolve() tests sometimes fail when run with a new connection

Solution

Add retries

Steps to Test

Run wiring/no_fixture_wifi on device-os test runner and ensure tests pass.

  No fixture wifi
    argon
      systemThread=disabled
        ✓ WIFI_00_connect (26.7s)
        ✓ WIFI_01_resolve_3_levels (5.8s)
        ✓ WIFI_02_resolve_4_levels
        ✓ WIFI_03_resolve
        ✓ WIFI_04_config
        ✓ WIFI_05_scan (4.8s)
        ✓ WIFI_06_restore_connection
        ✓ WIFI_11_scan_returns_zero_result_or_error_when_wifi_is_off (6.9s)
        ✓ WIFI_12_restore_connection
        ✓ WIFI_13_wifi_class_methods_work_correctly_when_wifi_interface_is_off (2.9s)
      systemThread=enabled
        ✓ WIFI_00_connect (19.3s)
        ✓ WIFI_01_resolve_3_levels (5.8s)
        ✓ WIFI_02_resolve_4_levels (5.8s)
        ✓ WIFI_03_resolve (5.8s)
        ✓ WIFI_04_config
        ✓ WIFI_05_scan (4.8s)
        ✓ WIFI_06_restore_connection
        ✓ WIFI_11_scan_returns_zero_result_or_error_when_wifi_is_off (5.6s)
        ✓ WIFI_12_restore_connection
        ✓ WIFI_13_wifi_class_methods_work_correctly_when_wifi_interface_is_off (1.6s)

References

N/A

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Completeness

• User is totes amazing for contributing!
• Contributor has signed CLA (Info here)
• Problem and Solution clearly stated
• Run unit/integration/application tests on device
• Added documentation
• Added to CHANGELOG.md after merging (add links to docs and issues)