Introduce workspace dependencies (#12043)

# Description
This PR introduces [workspaces
dependencies](https://doc.rust-lang.org/cargo/reference/workspaces.html#the-dependencies-table).
The advantages are:
- a single place where dependency versions are declared
- reduces the number of files to change when upgrading a dependency
- reduces the risk of accidentally depending on 2 different versions of
the same dependency

I've only done a few so far. If this PR is accepted, I might continue
and progressively do the rest.

# User-Facing Changes
N/A

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting
N/A

crates/nu-cmd-dataframe/Cargo.toml

@@ -18,9 +18,9 @@ nu-parser = { path = "../nu-parser", version = "0.91.1" }
 nu-protocol = { path = "../nu-protocol", version = "0.91.1" }
 
 # Potential dependencies for extras
-chrono = { version = "0.4", features = ["std", "unstable-locales"], default-features = false }
+chrono = { workspace = true, features = ["std", "unstable-locales"], default-features = false }
 chrono-tz = "0.8"
-fancy-regex = "0.13"
+fancy-regex = { workspace = true }
 indexmap = { version = "2.2" }
 num = { version = "0.4", optional = true }
 serde = { version = "1.0", features = ["derive"] }