fix(qqbot): accept is_reconnect kwarg in connect() to match base class signature

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Problem

QQ bot fails to reconnect after gateway restart with error:

QQAdapter.connect() got an unexpected keyword argument 'is_reconnect'

All other platform adapters accept the is_reconnect parameter (from BasePlatformAdapter.connect), but QQ adapter was missed when this parameter was added to the base class.

Fix

Add *, is_reconnect: bool = False to QQAdapter.connect() signature to match the base class contract.

Verification

• Gateway restart: QQ bot reconnects successfully (state goes from retrying to connected)
• All other platforms already have this parameter — no regression risk

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Closes #52914

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Closing in favor of earlier PR #54037 which has the same fix.

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This was generated by AI during triage.

Duplicate of #52966 (earliest still-open canonical fix for #52914) — byte-identical one-line is_reconnect signature fix to QQAdapter.connect(). Note the earlier anchor #52922 is now closed/unmerged, so #52966 is the canonical open PR; this fix is also present in #53546/#54029/#54547/#57105.