Update Rust crate fontdue to 0.9 (#689)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [fontdue](https://togithub.com/mooman219/fontdue) | dependencies |
minor | `0.8` -> `0.9` |

---

### Release Notes

<details>
<summary>mooman219/fontdue (fontdue)</summary>

###
[`v0.9.0`](https://togithub.com/mooman219/fontdue/blob/HEAD/CHANGELOG.md#090---2024-05-13)

##### Added

-   Flag to conditionally use std hashmap over `hashbrown`

##### Changes

-   Update `ttf-parser` to 0.21
-   Update `rayon` to 1.10

</details>

---

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agb-image-converter/Cargo.toml

@@ -19,4 +19,4 @@ syn = { version = "2", features = ["proc-macro", "parsing"] }
 proc-macro2 = "1"
 quote = "1"
 asefile = "0.3.8"
-fontdue = "0.8"
+fontdue = "0.9"