fix: path canonicalization for parse file API

[Peefy]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

• fix: path canonicalization for parse file API

[zong-zhe]

LGTM

[coveralls]

Pull Request Test Coverage Report for Build 11456255045

Details

• 3 of 3 (100.0%) changed or added relevant lines in 2 files are covered.
• 17 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.02%) to 70.532%

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Files with Coverage Reduction	New Missed Lines	%
kclvm/tools/src/LSP/src/request.rs	3	64.97%
kclvm/tools/src/LSP/src/state.rs	7	81.14%
kclvm/tools/src/LSP/src/dispatcher.rs	7	65.71%

Totals
Change from base Build 11452901582:	0.02%
Covered Lines:	51743
Relevant Lines:	73361

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💛 - Coveralls