Auto merge of #29747 - mrobinson:workspace-dependencies, r=mukilan

Start the transition to workspace dependencies

This will ultimately make it simpler to update crate dependencies and reduce duplication when specifying requirements. Generally, this change does not touch dependencies that are only used by a single crate. We could consider moving them to workspace dependencies in the future.

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they do not change behavior.

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components/layout_thread_2020/Cargo.toml

@@ -11,22 +11,22 @@ name = "layout_thread"
 path = "lib.rs"
 
 [dependencies]
-app_units = "0.7"
-atomic_refcell = "0.1"
-crossbeam-channel = "0.4"
+app_units = { workspace = true }
+atomic_refcell = { workspace = true }
+crossbeam-channel = { workspace = true }
 embedder_traits = { path = "../embedder_traits" }
-euclid = "0.22"
-fnv = "1.0"
-fxhash = "0.2"
+euclid = { workspace = true }
+fnv = { workspace = true }
+fxhash = { workspace = true }
 gfx = { path = "../gfx" }
 gfx_traits = { path = "../gfx_traits" }
-html5ever = "0.26"
-ipc-channel = "0.14"
+html5ever = { workspace = true }
+ipc-channel = { workspace = true }
 layout = { path = "../layout_2020", package = "layout_2020" }
 layout_traits = { path = "../layout_traits" }
-lazy_static = "1"
-libc = "0.2"
-log = "0.4"
+lazy_static = { workspace = true }
+libc = { workspace = true }
+log = { workspace = true }
 malloc_size_of = { path = "../malloc_size_of" }
 metrics = { path = "../metrics" }
 msg = { path = "../msg" }