fix check invalid binds

[iamlinjunhong]

User description

What type of PR is this?

• API-change
• BUG
• Improvement
• Documentation
• Feature
• Test and CI
• Code Refactoring

Which issue(s) this PR fixes:

issue #https://github.com/matrixorigin/MO-Cloud/issues/3490 #https://github.com/matrixorigin/MO-Cloud/issues/3530
#https://github.com/matrixorigin/MO-Cloud/issues/3521 #https://github.com/matrixorigin/MO-Cloud/issues/3512

What this PR does / why we need it:

fix check invalid binds

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PR Type

Bug fix, Tests

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Description

• Added a nil check before calling isRetryError in the checkInvalidBinds method to prevent potential nil pointer dereference.
• Modified TestRetryValidateService to include a nil check before isRetryError.
• Added a new test TestValidateService to validate service responses, ensuring correct behavior for both valid and invalid service IDs.

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Changes walkthrough 📝

	Relevant files
Bug fix	lock_table_allocator.go Add nil check before retry error validation in `checkInvalidBinds` pkg/lockservice/lock_table_allocator.go Added a nil check before calling isRetryError in checkInvalidBinds method. +1/-1
Tests	rpc_test.go Enhance service validation tests with additional checks    pkg/lockservice/rpc_test.go Modified TestRetryValidateService to include a nil check before isRetryError. Added a new test TestValidateService to validate service responses. +29/-6

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PR Reviewer Guide 🔍

⏱️ Estimated effort to review [1-5]	2
🧪 Relevant tests	Yes
🔒 Security concerns	No
⚡ Key issues to review	None

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