refactor: Use interior mutability for the formatter #61

Job	Run time
check-conventional-commits / check-conventional-commits	10s
run-tests / cargo-check	34s
run-tests / cargo-test (macos-latest)	42s
run-tests / cargo-audit	9s
run-tests / cargo-test (ubuntu-latest)	1m 43s
run-tests / lint (ubuntu-latest)	1m 20s
test-github-actions / test-setup-versioned-files (ubuntu-latest)	4s
run-tests / cargo-test (windows-latest)	4m 3s
run-tests / lint (windows-latest)	1m 25s
test-github-actions / test-setup-versioned-files (windows-latest)	15s
test-github-actions / test-setup-versioned-files-with-specific-version (ubuntu-latest)	6s
test-github-actions / test-setup-versioned-files (macos-latest)	13s
test-github-actions / test-setup-versioned-files-with-specific-version (windows-latest)	13s
test-github-actions / test-versioned-files-update (ubuntu-latest)	8s
test-github-actions / test-setup-versioned-files-with-specific-version (macos-latest)	10s
test-github-actions / test-versioned-files-update (windows-latest)	13s
test-github-actions / test-versioned-files-update (macos-latest)	9s
bump-cargo-version	0s
all-checks-passed	1s
build-binaries	0s
tag-and-release	0s
	11m 38s

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