build: bump dirs from 3.0.2 to 4.0.0

Bumps [dirs](https://github.com/soc/dirs-rs) from 3.0.2 to 4.0.0.
- [Release notes](https://github.com/soc/dirs-rs/releases)
- [Commits](https://github.com/soc/dirs-rs/commits)

---
updated-dependencies:
- dependency-name: dirs
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Cargo.lock

@@ -196,7 +196,7 @@ dependencies = [
  "api_client",
  "clap",
  "credibility",
- "dirs",
+ "dirs 4.0.0",
  "epoll",
  "event_monitor",
  "hypervisor",
@@ -279,6 +279,15 @@ dependencies = [
  "dirs-sys",
 ]
 
+[[package]]
+name = "dirs"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3aa72a6f96ea37bbc5aa912f6788242832f75369bdfdadcb0e38423f100059"
+dependencies = [
+ "dirs-sys",
+]
+
 [[package]]
 name = "dirs-sys"
 version = "0.3.6"
@@ -1037,7 +1046,7 @@ dependencies = [
 name = "test_infra"
 version = "0.1.0"
 dependencies = [
- "dirs",
+ "dirs 3.0.2",
  "epoll",
  "libc",
  "ssh2",

Cargo.toml

@@ -40,7 +40,7 @@ versionize_derive = { git = "https://github.com/cloud-hypervisor/versionize_deri
 
 [dev-dependencies]
 credibility = "0.1.3"
-dirs = "3.0.2"
+dirs = "4.0.0"
 lazy_static= "1.4.0"
 net_util = { path = "net_util" }
 serde_json = "1.0.68"