Meltano

<https://github.com/meltano/sdk/pull/3304|#3304 chore: Make Python 3.14 the default>
Pull request opened by <https://github.com/edgarrmondragon|edgarrmondragon>
## Summary by Sourcery

Set Python 3.14 as the default supported and tested version across CI, documentation, and project templates.

CI:

• Update GitHub Actions workflows to use Python 3.14 instead of 3.13 for mypy, dependency, and test sessions
• Include Python 3.14 in cookiecutter mapper and tap CI matrices

Documentation:

• Revise Contributing Guide to state support for Python versions 3.10 through 3.14.x

Chores:

• Add Python 3.14 option to the bug report issue template
• Bump the project’s default .python-version file to 3.14
<https://github.com/meltano/sdk|meltano/sdk>

<https://github.com/meltano/sdk/pull/3304|#3304 chore: Make Python 3.14 the default>
Pull request ready for review by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk|meltano/sdk>

<https://github.com/meltano/sdk/pull/3304|#3304 chore: Make Python 3.14 the default>
Pull request merged by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/sdk|meltano/sdk>