build(deps): bump once_cell from 1.20.2 to 1.21.3

Bumps [once_cell](https://github.com/matklad/once_cell) from 1.20.2 to 1.21.3.
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](matklad/once_cell@v1.20.2...v1.21.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -70,7 +70,7 @@ libdnf-sys = { path = "rust/libdnf-sys", version = "0.1.0" }
 maplit = "1.0"
 nix = { version = "0.29.0", features = ["fs", "mount", "signal", "user"] }
 openssl = "0.10.72"
-once_cell = "1.20.2"
+once_cell = "1.21.3"
 os-release = "0.1.0"
 # We pull this one from git, as the project is no longer published as an external crate.
 ostree-ext = { git = "https://github.com/containers/bootc", rev = "d9b18c8883ad24e7b0faf596758e3c12b26656e5" }