Fix native API call on error inside `kclvm_service_call_with_length`

[bozaro]

1. Does this PR affect any open issues?(Y/N) and add issue references:

• [X] N
• [ ] Y

Fix #260, again

2. What is the scope of this PR (e.g. component or file name):

pkg/native

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• [ ] Affects user behaviors
• [ ] Contains syntax changes
• [ ] Contains variable changes
• [ ] Contains experimental features
• [ ] Performance regression: Consumes more CPU
• [ ] Performance regression: Consumes more Memory
• [X] Other

KCL method kclvm_service_call_with_length don't change result_len on negative scenario: https://github.com/kcl-lang/kcl/blob/d6ba71a3118b8756bf85d29f8ac221052f893ded/kclvm/api/src/service/capi.rs#L155-L162

And returns pointer to error CString pointer without touching result_len. I set result_len to C.SIZE_MAX (zero is correct protobuf message size) as CString with error marker and always return error if result_len was unchanged.

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• [X] N
• [ ] Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• [X] Unit test
• [ ] Integration test
• [ ] Benchmark (add benchmark stats below)
• [ ] Manual test (add detailed scripts or steps below)
• [ ] Other

[coveralls]

Pull Request Test Coverage Report for Build 8566803616

Details

• 5 of 5 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.04%) to 61.607%

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Totals
Change from base Build 8481575698:	0.04%
Covered Lines:	3174
Relevant Lines:	5152

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💛 - Coveralls

[Peefy]

LGTM