Effect-TS/effect effect@3.20.0

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Minor Changes

• #6124 8798a84 Thanks @mikearnaldi! - Fix scheduler task draining to isolate AsyncLocalStorage across fibers.

Patch Changes

• #6107 fc82e81 Thanks @gcanti! - Backport Types.VoidIfEmpty to 3.x

• #6088 82996bc Thanks @taylorOntologize! - Schema: fix Schema.omit producing wrong result on Struct with optionalWith({ default }) and index signatures

  getIndexSignatures now handles Transformation AST nodes by delegating to ast.to, matching the existing behavior of getPropertyKeys and getPropertyKeyIndexedAccess. Previously, Schema.omit on a struct combining Schema.optionalWith (with { default }, { as: "Option" }, etc.) and Schema.Record would silently take the wrong code path, returning a Transformation with property signatures instead of a TypeLiteral with index signatures.

• #6086 4d97a61 Thanks @taylorOntologize! - Schema: fix getPropertySignatures crash on Struct with optionalWith({ default }) and other Transformation-producing variants

  SchemaAST.getPropertyKeyIndexedAccess now handles Transformation AST nodes by delegating to ast.to, matching the existing behavior of getPropertyKeys. Previously, calling getPropertySignatures on a Schema.Struct containing Schema.optionalWith with { default }, { as: "Option" }, { nullable: true }, or similar options would throw "Unsupported schema (Transformation)".

• #6097 f6b0960 Thanks @gcanti! - Fix TupleWithRest post-rest validation to check each tail index sequentially.