Update Rust crate inventory to v0.3.20 (#26180)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [inventory](https://redirect.github.com/dtolnay/inventory) |
workspace.dependencies | patch | `0.3.19` -> `0.3.20` |

---

### Release Notes

<details>
<summary>dtolnay/inventory (inventory)</summary>

###
[`v0.3.20`](https://redirect.github.com/dtolnay/inventory/releases/tag/0.3.20)

[Compare
Source](https://redirect.github.com/dtolnay/inventory/compare/0.3.19...0.3.20)

-   Documentation improvements

</details>

---

### Configuration

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America/New_York, Automerge - At any time (no schedule defined).

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are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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this box

---

Release Notes:

- N/A

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Cargo.lock

@@ -6674,9 +6674,9 @@ dependencies = [
 
 [[package]]
 name = "inventory"
-version = "0.3.19"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54b12ebb6799019b044deaf431eadfe23245b259bba5a2c0796acec3943a3cdb"
+checksum = "ab08d7cd2c5897f2c949e5383ea7c7db03fb19130ffcfbf7eda795137ae3cb83"
 dependencies = [
  "rustversion",
 ]