chore(deps): update module prometheus/client_golang to v1.7.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/prometheus/client_golang	require	minor	v1.6.0 -> v1.7.0

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Release Notes

prometheus/client_golang

v1.7.0

Compare Source

• [CHANGE] API client: Add start/end parameters to LabelNames and LabelValues. #​767
• [FEATURE] testutil: Add GatherAndCount and enable filtering in CollectAndCount #​753
• [FEATURE] API client: Add support for status and runtimeinfo endpoints. #​755
• [ENHANCEMENT] Wrapping nil with a WrapRegistererWith... function creates a no-op Registerer. #​764
• [ENHANCEMENT] promlint: Allow Kelvin as a base unit for cases like color temperature. #​761
• [BUGFIX] push: Properly handle empty job and label values. #​752

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