chore: update Jest deps to v29 in package template

[cryptodev-2s]

Explanation

Missed updating the create-package template during the Jest v27 to v29 migration (#7894).

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Low Risk
Dependency-only update confined to the create-package template; risk is limited to newly generated packages’ test setup compatibility.

Overview
Updates the scripts/create-package/package-template/package.json devDependencies to Jest v29 by bumping jest, ts-jest, and @types/jest versions so new packages created from the template default to the newer test stack.

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