Bump libc from 0.2.103 to 0.2.104 (#4099)

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.103 to 0.2.104.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.103...0.2.104)

---
updated-dependencies:
- dependency-name: libc
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

polkadot/Cargo.lock

@@ -3279,9 +3279,9 @@ checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
 name = "libc"
-version = "0.2.103"
+version = "0.2.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6"
+checksum = "7b2f96d100e1cf1929e7719b7edb3b90ab5298072638fccd77be9ce942ecdfce"
 
 [[package]]
 name = "libgit2-sys"

polkadot/node/core/pvf/Cargo.toml

@@ -15,7 +15,7 @@ async-process = "1.1.0"
 assert_matches = "1.4.0"
 futures = "0.3.17"
 futures-timer = "3.0.2"
-libc = "0.2.103"
+libc = "0.2.104"
 slotmap = "1.0"
 tracing = "0.1.29"
 pin-project = "1.0.8"