chore: Add unit tests for Formats::try_from

[noahd1]

No description provided.

[qltysh]

Diff Coverage for ubuntu-latest: The code coverage on the diff in this pull request is 100.0%.

Total Coverage for ubuntu-latest: This PR will increase coverage by 0.04%.

File Coverage Changes

Path	File Coverage Δ	Indirect
qlty-cli/src/auth/auth_flow.rs	-0.6	√
qlty-config/src/library.rs	0.5	√
qlty-coverage/src/ci/github.rs	-0.3	√
qlty-coverage/src/formats.rs	29.3

🛟 Help

• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

• Total Coverage: Coverage for the whole repository, calculated as the sum of all File Coverage. Learn more.

• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

  • Indirect Changes: Changes to File Coverage for files that were not modified in this PR. Learn more.

[qltysh]

Diff Coverage for macos-15: The code coverage on the diff in this pull request is 100.0%.

Total Coverage for macos-15: This PR will increase coverage by 0.04%.

File Coverage Changes

Path	File Coverage Δ	Indirect
qlty-cli/src/auth/auth_flow.rs	-0.6	√
qlty-config/src/library.rs	0.5	√
qlty-coverage/src/ci/github.rs	-0.3	√
qlty-coverage/src/formats.rs	29.3

🛟 Help

• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

• Total Coverage: Coverage for the whole repository, calculated as the sum of all File Coverage. Learn more.

• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

  • Indirect Changes: Changes to File Coverage for files that were not modified in this PR. Learn more.