cleanup: update cargo_toml url used in crate_universe tests (#3700)

Also drop the serialized_configs dep from the integration test; it's not
needed there.

Author: krasimirgg

crate_universe/BUILD.bazel

@@ -129,7 +129,6 @@ rust_test(
     srcs = ["tests/cargo_integration_test.rs"],
     aliases = aliases(),
     data = glob(["test_data/**"]) + [
-        "//crate_universe/test_data/serialized_configs",
         "@rules_rust//rust/toolchain:current_cargo_files",
         "@rules_rust//rust/toolchain:current_rustc_files",
     ],

crate_universe/src/splicing.rs

@@ -579,7 +579,7 @@ mod test {
         assert_eq!(
             package,
             &cargo_toml::DependencyDetail {
-                git: Some("https://gitlab.com/crates.rs/cargo_toml.git".to_owned()),
+                git: Some("https://gitlab.com/lib.rs/cargo_toml.git".to_owned()),
                 tag: Some("v0.15.2".to_owned()),
                 default_features: true,
                 ..Default::default()

crate_universe/test_data/serialized_configs/BUILD.bazel

@@ -49,7 +49,7 @@ write_file(
         },
         packages = {
             "cargo_toml": crate.spec(
-                git = "https://gitlab.com/crates.rs/cargo_toml.git",
+                git = "https://gitlab.com/lib.rs/cargo_toml.git",
                 tag = "v0.15.2",
             ),
             "cfg-if": crate.spec(