chore: add ic-xrc-types to workspace dependencies

[jasonz-dfinity]

Why

Several crates pin ic-xrc-types individually at various versions (1.0.0, 1.1.0). The Bazel side already pins ^1.2.0 in rust.MODULE.bazel. This consolidates the Cargo side to match.

What

• Added ic-xrc-types = "1.2.0" to [workspace.dependencies] in the root Cargo.toml
• Switched all 6 crates (including xrc_mock) from inline version pins to { workspace = true }

[Copilot]

Pull request overview

This PR centralizes the ic-xrc-types dependency version by moving several crates from an inline pinned version to using the workspace-managed dependency, and adds ic-xrc-types to the workspace dependency list in the root Cargo.toml.

Changes:

• Switched multiple rs/* crates from ic-xrc-types = "1.0.0" to ic-xrc-types = { workspace = true }.
• Added ic-xrc-types = "1.0.0" under [workspace.dependencies] in the root Cargo.toml.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
rs/tests/testnets/Cargo.toml	Uses workspace-managed ic-xrc-types instead of a crate-local pinned version.
rs/nns/test_utils/Cargo.toml	Uses workspace-managed ic-xrc-types instead of a crate-local pinned version.
rs/nns/integration_tests/Cargo.toml	Uses workspace-managed ic-xrc-types instead of a crate-local pinned version.
rs/nns/cmc/Cargo.toml	Uses workspace-managed ic-xrc-types instead of a crate-local pinned version.
rs/nervous_system/integration_tests/Cargo.toml	Uses workspace-managed ic-xrc-types instead of a crate-local pinned version.
Cargo.toml	Adds ic-xrc-types to [workspace.dependencies] to support workspace-based dependency declarations.

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[Copilot]

Pull request overview

This PR consolidates the ic-xrc-types crate versioning across the Rust workspace by moving it to the root [workspace.dependencies] and switching individual crates to inherit it, aligning Cargo’s dependency pin with the Bazel-side pin.

Changes:

• Added ic-xrc-types = "1.2.0" to the root Cargo.toml under [workspace.dependencies].
• Updated 6 crate Cargo.toml files to use ic-xrc-types = { workspace = true } instead of pinning versions locally.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Cargo.toml	Adds ic-xrc-types as a workspace dependency at version 1.2.0.
rs/tests/testnets/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.
rs/rust_canisters/xrc_mock/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.
rs/nns/test_utils/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.
rs/nns/integration_tests/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.
rs/nns/cmc/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.
rs/nervous_system/integration_tests/Cargo.toml	Switches ic-xrc-types to inherit from workspace dependencies.

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