build(deps): bump jemalloc_pprof from 0.2.0 to 0.4.0

Bumps [jemalloc_pprof](https://github.com/polarsignals/rust-jemalloc-pprof) from 0.2.0 to 0.4.0.
- [Commits](https://github.com/polarsignals/rust-jemalloc-pprof/commits)

---
updated-dependencies:
- dependency-name: jemalloc_pprof
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -51,7 +51,7 @@ tikv-jemallocator = { version = "0.5.4", features = [
   "profiling",
   "unprefixed_malloc_on_supported_platforms",
 ] }
-jemalloc_pprof = "0.2.0"
+jemalloc_pprof = "0.4.0"
 tikv-jemalloc-ctl = "0.5.4"
 
 [dev-dependencies]