Asyncio Client Fixes (1)

[yuce]

This PR fixes the following issues with the asyncio and asyncore clients:

1. Create tasks for conn.close_connection calls.
2. Cluster get_member must use the correct variable
3. Fix the deadlock in asyncio listener
4. Wrong retry methods in VectorCollection
5. Remaining retries in schema replicaiton
6. Blocking cloud discovery refresh

[codecov-commenter]

Codecov Report

❌ Patch coverage is 51.21951% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.57%. Comparing base (132494d) to head (54a6e9e).

Files with missing lines	Patch %	Lines
hazelcast/internal/asyncio_listener.py	76.00%	6 Missing ⚠️
hazelcast/internal/asyncio_cluster.py	20.00%	4 Missing ⚠️
hazelcast/internal/asyncio_statistics.py	0.00%	4 Missing ⚠️
...elcast/internal/asyncio_proxy/vector_collection.py	0.00%	2 Missing ⚠️
hazelcast/proxy/vector_collection.py	0.00%	2 Missing ⚠️
hazelcast/internal/asyncio_compact.py	0.00%	1 Missing ⚠️
hazelcast/internal/asyncio_discovery.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #777      +/-   ##
==========================================
- Coverage   94.60%   94.57%   -0.03%     
==========================================
  Files         393      393              
  Lines       25077    25083       +6     
==========================================
- Hits        23723    23722       -1     
- Misses       1354     1361       +7     

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