treewide: move all cargo subcommands to `pkgs/development/tools/rust/`

pkgs/top-level/all-packages.nix

···
   buildRustCrateHelpers = callPackage ../build-support/rust/build-rust-crate/helpers.nix { };
   cratesIO = callPackage ../build-support/rust/crates-io.nix { };
 
-  cargo-web = callPackage ../development/tools/cargo-web {
+  cargo-web = callPackage ../development/tools/rust/cargo-web {
     inherit (darwin.apple_sdk.frameworks) CoreServices Security;
   };
 
-  cargo-flamegraph = callPackage ../development/tools/cargo-flamegraph {
+  cargo-flamegraph = callPackage ../development/tools/rust/cargo-flamegraph {
     inherit (darwin.apple_sdk.frameworks) Security;
     inherit (linuxPackages) perf;
   };
···
 
   defaultCrateOverrides = callPackage ../build-support/rust/default-crate-overrides.nix { };
 
-  cargo-about = callPackage ../tools/package-management/cargo-about { };
+  cargo-about = callPackage ../development/tools/rust/cargo-about { };
   cargo-all-features = callPackage ../development/tools/rust/cargo-all-features { };
-  cargo-audit = callPackage ../tools/package-management/cargo-audit {
+  cargo-audit = callPackage ../development/tools/rust/cargo-audit {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
   cargo-bisect-rustc = callPackage ../development/tools/rust/cargo-bisect-rustc {
···
   cargo-deadlinks = callPackage ../development/tools/rust/cargo-deadlinks {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
-  cargo-deb = callPackage ../tools/package-management/cargo-deb {
+  cargo-deb = callPackage ../development/tools/rust/cargo-deb {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
-  cargo-deps = callPackage ../tools/package-management/cargo-deps { };
-  cargo-download = callPackage ../tools/package-management/cargo-download { };
-  cargo-edit = callPackage ../tools/package-management/cargo-edit {
+  cargo-deps = callPackage ../development/tools/rust/cargo-deps { };
+  cargo-download = callPackage ../development/tools/rust/cargo-download { };
+  cargo-edit = callPackage ../development/tools/rust/cargo-edit {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
-  cargo-kcov = callPackage ../tools/package-management/cargo-kcov { };
-  cargo-graph = callPackage ../tools/package-management/cargo-graph { };
-  cargo-license = callPackage ../tools/package-management/cargo-license { };
+  cargo-kcov = callPackage ../development/tools/rust/cargo-kcov { };
+  cargo-graph = callPackage ../development/tools/rust/cargo-graph { };
+  cargo-license = callPackage ../development/tools/rust/cargo-license { };
   cargo-llvm-lines = callPackage ../development/tools/rust/cargo-llvm-lines { };
-  cargo-outdated = callPackage ../tools/package-management/cargo-outdated {
+  cargo-outdated = callPackage ../development/tools/rust/cargo-outdated {
     inherit (darwin.apple_sdk.frameworks) Security SystemConfiguration;
   };
-  cargo-release = callPackage ../tools/package-management/cargo-release {
+  cargo-release = callPackage ../development/tools/rust/cargo-release {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
   cargo-rr = callPackage ../development/tools/rust/cargo-rr { };
   cargo-tarpaulin = callPackage ../development/tools/analysis/cargo-tarpaulin {
     inherit (darwin.apple_sdk.frameworks) Security;
   };
-  cargo-update = callPackage ../tools/package-management/cargo-update {
+  cargo-update = callPackage ../development/tools/rust/cargo-update {
     inherit (darwin.apple_sdk.frameworks) Security;
   };