bump deps: spirit (+parser), golang, linter

[morgo]

No description provided.

[Copilot]

Pull request overview

This PR updates dependency/tooling versions and migrates SQL parsing from TiDB’s parser to Spirit’s parser, updating query formatting expectations accordingly.

Changes:

• Switch pkg/query parsing imports from github.com/pingcap/tidb/pkg/parser to github.com/block/spirit/pkg/parser (and related ast/format/mysql packages).
• Update query validation and tests to use shared AST-to-string restoration (restoreString), reflecting the new canonical formatting output.
• Bump Go/tooling/deps (Go 1.26.6, kong/testify/spirit, plus updated hermit pkg wrappers for Go and golangci-lint).

Reviewed changes

Copilot reviewed 5 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pkg/query/validator.go	Uses restoreString to extract WHERE clause (new canonical formatting path).
pkg/query/validator_test.go	Updates expected WHERE formatting to match Spirit parser restore output.
pkg/query/parse.go	Swaps SQL parser implementation to Spirit’s parser packages.
pkg/query/expression_folder.go	Updates parser/format imports and adjusts unfoldable function list for new AST package.
go.mod	Bumps Go version and updates key deps (spirit/kong/testify) while removing TiDB parser dependency.
go.sum	Updates module checksums consistent with dependency bumps/removals.
bin/.golangci-lint-2.12.2.pkg	Adds hermit-generated wrapper for golangci-lint version bump.
bin/.go-1.26.6.pkg	Adds hermit-generated wrapper for Go version bump.

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