submodules: update cargo from 9d32b7b01 to 3c53211c3

Changes:
````
Update jobserver.
Update tar.
Emit report on error with Ztimings.
Do not run `formats_source` if `rustfmt` is not available
Fix rebuild_sub_package_then_while_package on HFS.
Remove likely brittle test.
Install rustfmt for testing in CI
Fix build-std collisions.
Fix BuildScriptOutput when a build script is run multiple times.
Fix required-features using renamed dependencies.
Fix using global options before an alias.
Update changelog for 1.42.
Bump to 0.44.0.
Log rustfmt output if it fails; also do not check that rustfmt exists
Update pretty_env_logger requirement from 0.3 to 0.4
Swap std::sync::mpsc channel with crossbeam_channel
Fix tests on Linux/MacOS
Fix typo.
Add tests
Deduplicate warnings about missing rustfmt
Log entry 2: first implementation
Refactor code
Stabilize config-profile.
Log entry 1
Format code
Remove tempdir after install
Keep existing package with git install
Use non-ephemeral workspace
Test that git install reads virtual manifest
Fix failing test
Search for root manifest with ephemeral workspaces
Support out-dir in build section of Cargo configuration file
````

2 files changed, 1 insertions, 0 deletions

diff --git a/src/tools/cargo b/src/tools/cargo
-Subproject 9d32b7b01409024b165545c568b1525d86e2b7c
+Subproject 3c53211c3d7fee4f430f170115af5baad17a3da
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index ea92f7bee6b..7a20a96130c 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -59,6 +59,7 @@ const EXCEPTIONS: &[&str] = &[
     "dunce",              // CC0-1.0 mdbook-linkcheck
     "codespan-reporting", // Apache-2.0 mdbook-linkcheck
     "codespan",           // Apache-2.0 mdbook-linkcheck
+    "crossbeam-channel",  // MIT/Apache-2.0 AND BSD-2-Clause, cargo
 ];
 
 /// Which crates to check against the whitelist?