fix: time zone retrieval and logging

[mattjohnsonpint]

• Split the time zone cache into two parts, and used Go's built-in time.LoadLocation for the common path
• Added some logging in case we get any more errors in this area

[linear]

HYP-3520 Failed to get time in [timezone]

[Copilot]

Pull Request Overview

This PR refactors time zone loading into separate data and location caches, leverages Go’s built-in time.LoadLocation, and adds improved error handling and logging.

• Split tzCache into tzDataCache and tzLocationCache and updated loading functions to return raw bytes or *time.Location.
• Changed public APIs (GetLocation, GetTimeZoneData) to accept context.Context, return errors, and log failures.
• Added checks for empty time zone data and unsupported formats, and updated the changelog.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
runtime/timezones/tzdata_windows.go	Renamed loadTimeZoneInfo → loadTimeZoneData, added empty-data check
runtime/timezones/tzdata_other.go	Same refactor for non-Windows path, but missing imports and unused ones
runtime/timezones/timezones.go	Introduced separate caches, context support, and error returns
runtime/hostfunctions/system.go	Added context-aware logging and error handling in time helpers
CHANGELOG.md	Bumped version and noted this fix

Comments suppressed due to low confidence (3)

runtime/timezones/tzdata_other.go:19

• This file uses fmt.Errorf and errors.New but neither "fmt" nor "errors" are imported, causing build failures. Add the missing imports.

	"strings"

runtime/timezones/tzdata_other.go:18

• [nitpick] The imports "path" and "strings" are not used in this function. Remove these unused imports to clean up the code.

	"path"

runtime/timezones/timezones.go:16

• [nitpick] The "os" import is not used in this file; you can remove it to avoid unused-import warnings.

	"os"