fix(metrics): remove duplicate scanner counter producers (#6245)

* fix(metrics): remove duplicate scanner counter producers

* chore(deps): centralize metrics test dependencies

* ci: avoid apt mirror for ripgrep setup

* test(protos): track read-version encoder refactor

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Co-authored-by: Henry Guo <marshawcoco@users.noreply.github.com>
Co-authored-by: houseme <housemecn@gmail.com>

crates/obs/Cargo.toml

@@ -163,4 +163,5 @@ libc = { workspace = true }
 [dev-dependencies]
 tempfile = { workspace = true }
 temp-env = { workspace = true }
-log = "0.4"
+log.workspace = true
+metrics-util = { workspace = true, features = ["debugging"] }