Bump github.com/prometheus/client_golang from 1.19.1 to 1.20.5 #184

Job	Run time
Linting	3m 14s
Build for Windows (windows, amd64)	3m 28s
Build for Linux (linux, amd64)	1m 53s
Unit tests	3m 36s
Build for Linux (linux, 386)	1m 37s
WASM build test	0s
Initial tests passed	2s
Upgrade tests from HEAD-2	6m 57s
Integration tests	4m 45s
Sytest (SQLite native)	5m 54s
Complement (SQLite native)	4m 17s
Sytest (SQLite Cgo)	4m 34s
Complement (SQLite Cgo)	5m 7s
Upgrade tests	7m 2s
Sytest (PostgreSQL)	7m 1s
Complement (PostgreSQL)	9m 2s
Integration tests passed	2s
Update Docker images	0s
	1h 8m 31s

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