libbpf-cargo: Update cargo_metadata to 0.19.1

Update the cargo_metadata dependency to version 0.19.1, in order to get
the latest and greatest.

Signed-off-by: Daniel Müller <deso@posteo.net>

Author: d-e-s-o

Cargo.lock

@@ -29,8 +29,8 @@ path = "src/lib.rs"
 default = ["libbpf-rs/default"]
 
 [dependencies]
-anyhow = "1.0.1"
-cargo_metadata = "0.15.0"
+anyhow = "1.0.40"
+cargo_metadata = "0.19.1"
 env_logger = { version = "0.11.6", default-features = false, features = ["auto-color", "humantime"] }
 libbpf-rs = { version = "=0.25.0-beta.1", default-features = false, path = "../libbpf-rs" }
 log = "0.4.25"

libbpf-cargo/Cargo.toml

@@ -20,5 +20,14 @@ dont-generate-test-files = []
 
 [build-dependencies]
 libbpf-sys = { version = "1.4.1", default-features = false, optional = true }
-tempfile = { version = "3.3", optional = true }
+tempfile = { version = "3.15", optional = true }
 vmlinux = { git = "https://github.com/libbpf/vmlinux.h.git", rev = "83a228cf37fc65f2d14e4896a04922b5ee531a94" }
+
+[dev-dependencies]
+# A set of unused dependencies that we require to force correct minimum versions
+# of transitive dependencies, for cases where our dependencies have incorrect
+# dependency specifications themselves.
+# error: unknown serde variant attribute `untagged`
+_serde_unused = { package = "serde", version = "1.0.200" }
+# error[E0277]: the trait bound `serde_json::Value: Hash` is not satisfied
+_serde_json_unused = { package = "serde_json", version = "1.0.137" }