ci: ensures typos are caught during CI

[apoclyps]

What's Changed

This pull request introduces several improvements focused on code quality, documentation, and typo corrections. The main changes include adding a pull request template, integrating a spelling checker into the pre-commit workflow, and correcting various spelling mistakes across the codebase.

Documentation and Process Improvements

• Added a standardized pull request template in .github/PULL_REQUEST_TEMPLATE.md to guide contributors in documenting their changes.

Tooling Enhancements

• Integrated the typos spelling checker into the pre-commit configuration via .pre-commit-config.yaml and added a custom dictionary in .typos.toml to handle project-specific terms.

Spelling and Typo Corrections

• Fixed multiple spelling errors throughout the codebase and documentation, including words like "separated", "configuration", "throttled", and "explicitly".

[Copilot]

Pull request overview

This pull request introduces typos checking into the CI pipeline to catch spelling errors automatically, while also fixing multiple spelling mistakes that already exist in the codebase. The PR includes tooling configuration, spelling corrections, and a standardized pull request template.

Changes:

• Added typos checker to pre-commit hooks and GitHub Actions CI workflow
• Fixed spelling errors throughout the codebase including "explicitly", "throttled", "separator", "configuration", "separated", and "automatically"
• Added pull request template to standardize contribution documentation

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.typos.toml	Configuration file for typos checker with custom dictionary to handle project-specific terms like proper names and intentional partial words
.pre-commit-config.yaml	Added typos hook (v1.42.0) to pre-commit configuration
.github/workflows/lint.yml	Added typos CI job using GitHub Actions (v1.29.5)
.github/PULL_REQUEST_TEMPLATE.md	Added standardized PR template for contributors
cloudsmith_cli/core/tests/test_init.py	Fixed typo: "explcitly" → "explicitly"
cloudsmith_cli/core/ratelimits.py	Fixed typo: "throtted" → "throttled" (important for API key matching)
cloudsmith_cli/cli/tests/commands/test_repos.py	Fixed typo: "seperator" → "separator"
cloudsmith_cli/cli/config.py	Fixed typo: "configuratin" → "configuration"
cloudsmith_cli/cli/commands/metrics/packages.py	Fixed typo: "seperated" → "separated"
cloudsmith_cli/cli/commands/metrics/entitlements.py	Fixed typo: "seperated" → "separated"
CHANGELOG.md	Fixed typo: "automaticlly" → "automatically"

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[BartoszBlizniak]

nit-pick: Should we also include a template for issues?