chore(deps): update pprof requirement from 0.14 to 0.15 (#1577)

---
updated-dependencies:
- dependency-name: pprof
  dependency-version: 0.14.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

Cargo.toml

@@ -88,7 +88,7 @@ console-subscriber = "0.4"
 criterion = { version = "0.5", features = ["async_tokio", "html_reports"] }
 fast-socks5 = "0.10"
 futures = { version = "0.3.14", default-features = false, features = ["std"] }
-pprof = { version = "0.14", features = ["flamegraph", "criterion"] }
+pprof = { version = "0.15", features = ["flamegraph", "criterion"] }
 socket2 = "0.5.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 trybuild = "1.0.97"