chore(deps): bump diesel from 2.1.5 to 2.1.6 in /src-tauri

[dependabot[bot]]

Bumps diesel from 2.1.5 to 2.1.6.

Changelog

Sourced from diesel's changelog.

[2.1.6] 2024-04-19

• Fix using BoxableExpression with having clauses
• Fix using numeric expressions with aliased fields
• Minor documentation fixes

Commits

• 26c6be4 Preapare a diesel 2.1.6 patch release
• 2dc6cc1 Merge pull request #3956 from Tanguille/docs/clarify-as-expression-to-sql
• ca66173 Merge pull request #3980 from kornelski/dev-cycle
• 45915ac Merge pull request #3971 from Ten0/fix_missing_skip_insertion_attribute_in_un...
• 26b8803 Merge pull request #3979 from formlogic-kirk/alias_op_impls
• 6a9bfdf Fix the having clause tests + add a test for normal select queries
• 0799a44 Add ValidGrouping to boxed having expression
• 5d6637f Try explicitly implementing FromClause<F> for HavingDsl<Predicate>
• b4776a3 Add test
• See full diff in compare view

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