fix: correctly handle empty family labels#175

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mxinden wants to merge 3 commits intoprometheus:masterfrom

tylerlevine:histogram-empty-family-labels-fix

Commits on Aug 5, 2024

fix(encoding): correctly handle empty family labels
tylerlevine
committed
refactor(encoding): replace `EncodeLabelSet` impl for `()` with private uninhabited type
tylerlevine
committed
chore: lazily add a comma if needed before writing family labels
tylerlevine
committed